diff --git a/Pipfile.lock b/Pipfile.lock
index 8a647ca6f..530232687 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,10 +18,10 @@
     "default": {
         "certifi": {
             "hashes": [
-                "sha256:046832c04d4e752f37383b628bc601a7ea7211496b4638f6514d0e5b9acc4939",
-                "sha256:945e3ba63a0b9f577b1395204e13c3a231f9bc0223888be653286534e5873695"
+                "sha256:5930595817496dd21bb8dc35dad090f1c2cd0adfaf21204bf6732ca5d8ee34d3",
+                "sha256:8fc0819f1f30ba15bdb34cceffb9ef04d99f420f68eb75d901e9560b8749fc41"
             ],
-            "version": "==2019.6.16"
+            "version": "==2020.6.20"
         },
         "chardet": {
             "hashes": [
@@ -32,78 +32,79 @@
         },
         "idna": {
             "hashes": [
-                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
-                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
+                "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6",
+                "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"
             ],
-            "version": "==2.8"
+            "version": "==2.10"
         },
         "requests": {
             "hashes": [
-                "sha256:11e007a8a2aa0323f5a921e9e6a2d7e4e67d9877e85773fba9ba6419025cbeb4",
-                "sha256:9cf5292fcd0f598c671cfc1e0d7d1a7f13bb8085e9a590f48c010551dc6c4b31"
+                "sha256:b3559a131db72c33ee969480840fff4bb6dd111de7dd27c8ee1f820f4f00231b",
+                "sha256:fe75cc94a9443b9246fc7049224f75604b113c36acb93f87b80ed42c44cbb898"
             ],
-            "index": "pypi",
-            "version": "==2.22.0"
+            "version": "==2.24.0"
         },
         "urllib3": {
             "hashes": [
-                "sha256:b246607a25ac80bedac05c6f282e3cdaf3afb65420fd024ac94435cabe6e18d1",
-                "sha256:dbe59173209418ae49d485b87d1681aefa36252ee85884c31346debd19463232"
+                "sha256:91056c15fa70756691db97756772bb1eb9678fa585d9184f24534b100dc60f4a",
+                "sha256:e7983572181f5e1522d9c98453462384ee92a0be7fac5f1413a1e35c56cc0461"
             ],
-            "version": "==1.25.3"
+            "version": "==1.25.10"
         }
     },
     "develop": {
         "atomicwrites": {
             "hashes": [
-                "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4",
-                "sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6"
+                "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197",
+                "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"
             ],
-            "version": "==1.3.0"
+            "version": "==1.4.0"
         },
         "attrs": {
             "hashes": [
-                "sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79",
-                "sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399"
+                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
+                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
             ],
-            "version": "==19.1.0"
+            "version": "==19.3.0"
         },
         "coverage": {
             "hashes": [
-                "sha256:3684fabf6b87a369017756b551cef29e505cb155ddb892a7a29277b978da88b9",
-                "sha256:39e088da9b284f1bd17c750ac672103779f7954ce6125fd4382134ac8d152d74",
-                "sha256:3c205bc11cc4fcc57b761c2da73b9b72a59f8d5ca89979afb0c1c6f9e53c7390",
-                "sha256:465ce53a8c0f3a7950dfb836438442f833cf6663d407f37d8c52fe7b6e56d7e8",
-                "sha256:48020e343fc40f72a442c8a1334284620f81295256a6b6ca6d8aa1350c763bbe",
-                "sha256:5296fc86ab612ec12394565c500b412a43b328b3907c0d14358950d06fd83baf",
-                "sha256:5f61bed2f7d9b6a9ab935150a6b23d7f84b8055524e7be7715b6513f3328138e",
-                "sha256:68a43a9f9f83693ce0414d17e019daee7ab3f7113a70c79a3dd4c2f704e4d741",
-                "sha256:6b8033d47fe22506856fe450470ccb1d8ba1ffb8463494a15cfc96392a288c09",
-                "sha256:7ad7536066b28863e5835e8cfeaa794b7fe352d99a8cded9f43d1161be8e9fbd",
-                "sha256:7bacb89ccf4bedb30b277e96e4cc68cd1369ca6841bde7b005191b54d3dd1034",
-                "sha256:839dc7c36501254e14331bcb98b27002aa415e4af7ea039d9009409b9d2d5420",
-                "sha256:8f9a95b66969cdea53ec992ecea5406c5bd99c9221f539bca1e8406b200ae98c",
-                "sha256:932c03d2d565f75961ba1d3cec41ddde00e162c5b46d03f7423edcb807734eab",
-                "sha256:988529edadc49039d205e0aa6ce049c5ccda4acb2d6c3c5c550c17e8c02c05ba",
-                "sha256:998d7e73548fe395eeb294495a04d38942edb66d1fa61eb70418871bc621227e",
-                "sha256:9de60893fb447d1e797f6bf08fdf0dbcda0c1e34c1b06c92bd3a363c0ea8c609",
-                "sha256:9e80d45d0c7fcee54e22771db7f1b0b126fb4a6c0a2e5afa72f66827207ff2f2",
-                "sha256:a545a3dfe5082dc8e8c3eb7f8a2cf4f2870902ff1860bd99b6198cfd1f9d1f49",
-                "sha256:a5d8f29e5ec661143621a8f4de51adfb300d7a476224156a39a392254f70687b",
-                "sha256:aca06bfba4759bbdb09bf52ebb15ae20268ee1f6747417837926fae990ebc41d",
-                "sha256:bb23b7a6fd666e551a3094ab896a57809e010059540ad20acbeec03a154224ce",
-                "sha256:bfd1d0ae7e292105f29d7deaa9d8f2916ed8553ab9d5f39ec65bcf5deadff3f9",
-                "sha256:c62ca0a38958f541a73cf86acdab020c2091631c137bd359c4f5bddde7b75fd4",
-                "sha256:c709d8bda72cf4cd348ccec2a4881f2c5848fd72903c185f363d361b2737f773",
-                "sha256:c968a6aa7e0b56ecbd28531ddf439c2ec103610d3e2bf3b75b813304f8cb7723",
-                "sha256:df785d8cb80539d0b55fd47183264b7002077859028dfe3070cf6359bf8b2d9c",
-                "sha256:f406628ca51e0ae90ae76ea8398677a921b36f0bd71aab2099dfed08abd0322f",
-                "sha256:f46087bbd95ebae244a0eda01a618aff11ec7a069b15a3ef8f6b520db523dcf1",
-                "sha256:f8019c5279eb32360ca03e9fac40a12667715546eed5c5eb59eb381f2f501260",
-                "sha256:fc5f4d209733750afd2714e9109816a29500718b32dd9a5db01c0cb3a019b96a"
-            ],
-            "index": "pypi",
-            "version": "==4.5.3"
+                "sha256:098a703d913be6fbd146a8c50cc76513d726b022d170e5e98dc56d958fd592fb",
+                "sha256:16042dc7f8e632e0dcd5206a5095ebd18cb1d005f4c89694f7f8aafd96dd43a3",
+                "sha256:1adb6be0dcef0cf9434619d3b892772fdb48e793300f9d762e480e043bd8e716",
+                "sha256:27ca5a2bc04d68f0776f2cdcb8bbd508bbe430a7bf9c02315cd05fb1d86d0034",
+                "sha256:28f42dc5172ebdc32622a2c3f7ead1b836cdbf253569ae5673f499e35db0bac3",
+                "sha256:2fcc8b58953d74d199a1a4d633df8146f0ac36c4e720b4a1997e9b6327af43a8",
+                "sha256:304fbe451698373dc6653772c72c5d5e883a4aadaf20343592a7abb2e643dae0",
+                "sha256:30bc103587e0d3df9e52cd9da1dd915265a22fad0b72afe54daf840c984b564f",
+                "sha256:40f70f81be4d34f8d491e55936904db5c527b0711b2a46513641a5729783c2e4",
+                "sha256:4186fc95c9febeab5681bc3248553d5ec8c2999b8424d4fc3a39c9cba5796962",
+                "sha256:46794c815e56f1431c66d81943fa90721bb858375fb36e5903697d5eef88627d",
+                "sha256:4869ab1c1ed33953bb2433ce7b894a28d724b7aa76c19b11e2878034a4e4680b",
+                "sha256:4f6428b55d2916a69f8d6453e48a505c07b2245653b0aa9f0dee38785939f5e4",
+                "sha256:52f185ffd3291196dc1aae506b42e178a592b0b60a8610b108e6ad892cfc1bb3",
+                "sha256:538f2fd5eb64366f37c97fdb3077d665fa946d2b6d95447622292f38407f9258",
+                "sha256:64c4f340338c68c463f1b56e3f2f0423f7b17ba6c3febae80b81f0e093077f59",
+                "sha256:675192fca634f0df69af3493a48224f211f8db4e84452b08d5fcebb9167adb01",
+                "sha256:700997b77cfab016533b3e7dbc03b71d33ee4df1d79f2463a318ca0263fc29dd",
+                "sha256:8505e614c983834239f865da2dd336dcf9d72776b951d5dfa5ac36b987726e1b",
+                "sha256:962c44070c281d86398aeb8f64e1bf37816a4dfc6f4c0f114756b14fc575621d",
+                "sha256:9e536783a5acee79a9b308be97d3952b662748c4037b6a24cbb339dc7ed8eb89",
+                "sha256:9ea749fd447ce7fb1ac71f7616371f04054d969d412d37611716721931e36efd",
+                "sha256:a34cb28e0747ea15e82d13e14de606747e9e484fb28d63c999483f5d5188e89b",
+                "sha256:a3ee9c793ffefe2944d3a2bd928a0e436cd0ac2d9e3723152d6fd5398838ce7d",
+                "sha256:aab75d99f3f2874733946a7648ce87a50019eb90baef931698f96b76b6769a46",
+                "sha256:b1ed2bdb27b4c9fc87058a1cb751c4df8752002143ed393899edb82b131e0546",
+                "sha256:b360d8fd88d2bad01cb953d81fd2edd4be539df7bfec41e8753fe9f4456a5082",
+                "sha256:b8f58c7db64d8f27078cbf2a4391af6aa4e4767cc08b37555c4ae064b8558d9b",
+                "sha256:c1bbb628ed5192124889b51204de27c575b3ffc05a5a91307e7640eff1d48da4",
+                "sha256:c2ff24df02a125b7b346c4c9078c8936da06964cc2d276292c357d64378158f8",
+                "sha256:c890728a93fffd0407d7d37c1e6083ff3f9f211c83b4316fae3778417eab9811",
+                "sha256:c96472b8ca5dc135fb0aa62f79b033f02aa434fb03a8b190600a5ae4102df1fd",
+                "sha256:ce7866f29d3025b5b34c2e944e66ebef0d92e4a4f2463f7266daa03a1332a651",
+                "sha256:e26c993bd4b220429d4ec8c1468eca445a4064a61c74ca08da7429af9bc53bb0"
+            ],
+            "version": "==5.2.1"
         },
         "entrypoints": {
             "hashes": [
@@ -114,18 +115,17 @@
         },
         "flake8": {
             "hashes": [
-                "sha256:859996073f341f2670741b51ec1e67a01da142831aa1fdc6242dbf88dffbe661",
-                "sha256:a796a115208f5c03b18f332f7c11729812c8c3ded6c46319c59b53efd3819da8"
+                "sha256:15e351d19611c887e482fb960eae4d44845013cc142d42896e9862f775d8cf5c",
+                "sha256:f04b9fcbac03b0a3e58c0ab3a0ecc462e023a9faf046d57794184028123aa208"
             ],
-            "index": "pypi",
-            "version": "==3.7.7"
+            "version": "==3.8.3"
         },
         "importlib-metadata": {
             "hashes": [
-                "sha256:6dfd58dfe281e8d240937776065dd3624ad5469c835248219bd16cf2e12dbeb7",
-                "sha256:cb6ee23b46173539939964df59d3d72c3e0c1b5d54b84f1d8a7e912fe43612db"
+                "sha256:90bb658cdbbf6d1735b6341ce708fc7024a3e14e99ffdc5783edea9f9b077f83",
+                "sha256:dc15b2969b4ce36305c51eebe62d418ac7791e9a157911d58bfb1f9ccd8e2070"
             ],
-            "version": "==0.18"
+            "version": "==1.7.0"
         },
         "mccabe": {
             "hashes": [
@@ -136,98 +136,94 @@
         },
         "more-itertools": {
             "hashes": [
-                "sha256:2112d2ca570bb7c3e53ea1a35cd5df42bb0fd10c45f0fb97178679c3c03d64c7",
-                "sha256:c3e4748ba1aad8dba30a4886b0b1a2004f9a863837b8654e7059eebf727afa5a"
+                "sha256:68c70cc7167bdf5c7c9d8f6954a7837089c6a36bf565383919bb595efb8a17e5",
+                "sha256:b78134b2063dd214000685165d81c154522c3ee0a1c0d4d113c80361c234c5a2"
             ],
-            "markers": "python_version > '2.7'",
-            "version": "==7.0.0"
+            "version": "==8.4.0"
         },
         "packaging": {
             "hashes": [
-                "sha256:0c98a5d0be38ed775798ece1b9727178c4469d9c3b4ada66e8e6b7849f8732af",
-                "sha256:9e1cbf8c12b1f1ce0bb5344b8d7ecf66a6f8a6e91bcb0c84593ed6d3ab5c4ab3"
+                "sha256:4357f74f47b9c12db93624a82154e9b120fa8293699949152b22065d556079f8",
+                "sha256:998416ba6962ae7fbd6596850b80e17859a5753ba17c32284f67bfff33784181"
             ],
-            "version": "==19.0"
+            "version": "==20.4"
         },
         "pluggy": {
             "hashes": [
-                "sha256:0825a152ac059776623854c1543d65a4ad408eb3d33ee114dff91e57ec6ae6fc",
-                "sha256:b9817417e95936bf75d85d3f8767f7df6cdde751fc40aed3bb3074cbcb77757c"
+                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
+                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "version": "==0.12.0"
+            "version": "==0.13.1"
         },
         "py": {
             "hashes": [
-                "sha256:64f65755aee5b381cea27766a3a147c3f15b9b6b9ac88676de66ba2ae36793fa",
-                "sha256:dc639b046a6e2cff5bbe40194ad65936d6ba360b52b3c3fe1d08a82dd50b5e53"
+                "sha256:366389d1db726cd2fcfc79732e75410e5fe4d31db13692115529d34069a043c2",
+                "sha256:9ca6883ce56b4e8da7e79ac18787889fa5206c79dcc67fb065376cd2fe03f342"
             ],
-            "version": "==1.8.0"
+            "version": "==1.9.0"
         },
         "pycodestyle": {
             "hashes": [
-                "sha256:95a2219d12372f05704562a14ec30bc76b05a5b297b21a5dfe3f6fac3491ae56",
-                "sha256:e40a936c9a450ad81df37f549d676d127b1b66000a6c500caa2b085bc0ca976c"
+                "sha256:2295e7b2f6b5bd100585ebcb1f616591b652db8a741695b3d8f5d28bdc934367",
+                "sha256:c58a7d2815e0e8d7972bf1803331fb0152f867bd89adf8a01dfd55085434192e"
             ],
-            "version": "==2.5.0"
+            "version": "==2.6.0"
         },
         "pyflakes": {
             "hashes": [
-                "sha256:17dbeb2e3f4d772725c777fabc446d5634d1038f234e77343108ce445ea69ce0",
-                "sha256:d976835886f8c5b31d47970ed689944a0262b5f3afa00a5a7b4dc81e5449f8a2"
+                "sha256:0d94e0e05a19e57a99444b6ddcf9a6eb2e5c68d3ca1e98e90707af8152c90a92",
+                "sha256:35b2d75ee967ea93b55750aa9edbbf72813e06a66ba54438df2cfac9e3c27fc8"
             ],
-            "version": "==2.1.1"
+            "version": "==2.2.0"
         },
         "pyparsing": {
             "hashes": [
-                "sha256:1873c03321fc118f4e9746baf201ff990ceb915f433f23b395f5580d1840cb2a",
-                "sha256:9b6323ef4ab914af344ba97510e966d64ba91055d6b9afa6b30799340e89cc03"
+                "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1",
+                "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"
             ],
-            "version": "==2.4.0"
+            "version": "==2.4.7"
         },
         "pytest": {
             "hashes": [
-                "sha256:4a784f1d4f2ef198fe9b7aef793e9fa1a3b2f84e822d9b3a64a181293a572d45",
-                "sha256:926855726d8ae8371803f7b2e6ec0a69953d9c6311fa7c3b6c1b929ff92d27da"
+                "sha256:85228d75db9f45e06e57ef9bf4429267f81ac7c0d742cc9ed63d09886a9fe6f4",
+                "sha256:8b6007800c53fdacd5a5c192203f4e531eb2a1540ad9c752e052ec0f7143dbad"
             ],
-            "index": "pypi",
-            "version": "==4.6.3"
+            "version": "==6.0.1"
         },
         "pytest-cov": {
             "hashes": [
-                "sha256:2b097cde81a302e1047331b48cadacf23577e431b61e9c6f49a1170bbe3d3da6",
-                "sha256:e00ea4fdde970725482f1f35630d12f074e121a23801aabf2ae154ec6bdd343a"
+                "sha256:1a629dc9f48e53512fcbfda6b07de490c374b0c83c55ff7a1720b3fccff0ac87",
+                "sha256:6e6d18092dce6fad667cd7020deed816f858ad3b49d5b5e2b1cc1c97a4dba65c"
             ],
-            "index": "pypi",
-            "version": "==2.7.1"
+            "version": "==2.10.0"
         },
         "pytest-mock": {
             "hashes": [
-                "sha256:43ce4e9dd5074993e7c021bb1c22cbb5363e612a2b5a76bc6d956775b10758b7",
-                "sha256:5bf5771b1db93beac965a7347dc81c675ec4090cb841e49d9d34637a25c30568"
+                "sha256:5564c7cd2569b603f8451ec77928083054d8896046830ca763ed68f4112d17c7",
+                "sha256:7122d55505d5ed5a6f3df940ad174b3f606ecae5e9bc379569cdcbd4cd9d2b83"
             ],
-            "index": "pypi",
-            "version": "==1.10.4"
+            "version": "==3.2.0"
         },
         "six": {
             "hashes": [
-                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
-                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+                "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259",
+                "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"
             ],
-            "version": "==1.12.0"
+            "version": "==1.15.0"
         },
         "wcwidth": {
             "hashes": [
-                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
-                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
+                "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784",
+                "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"
             ],
-            "version": "==0.1.7"
+            "version": "==0.2.5"
         },
         "zipp": {
             "hashes": [
-                "sha256:8c1019c6aad13642199fbe458275ad6a84907634cc9f0989877ccc4a2840139d",
-                "sha256:ca943a7e809cc12257001ccfb99e3563da9af99d52f261725e96dfe0f9275bc3"
+                "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b",
+                "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"
             ],
-            "version": "==0.5.1"
+            "version": "==3.1.0"
         }
     }
 }