Remove .ruby-version, update dependencies

.gitignore

@@ -1,4 +1,5 @@
 *.gem
 .bundle
 .coveralls.yml
-coverage
+.ruby-version
+coverage

Gemfile.lock

@@ -8,26 +8,24 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    coveralls (0.8.1)
-      json (~> 1.8)
-      rest-client (>= 1.6.8, < 2)
-      simplecov (~> 0.10.0)
+    concurrent-ruby (1.0.5)
+    coveralls (0.8.22)
+      json (>= 1.8, < 3)
+      simplecov (~> 0.16.1)
       term-ansicolor (~> 1.3)
-      thor (~> 0.19.1)
-    diff-lcs (1.2.5)
-    docile (1.1.5)
-    domain_name (0.5.24)
-      unf (>= 0.0.5, < 1.0.0)
-    faraday (0.10.1)
+      thor (~> 0.19.4)
+      tins (~> 1.6)
+    diff-lcs (1.3)
+    docile (1.3.1)
+    faraday (0.15.2)
       multipart-post (>= 1.2, < 3)
-    http-cookie (1.0.2)
-      domain_name (~> 0.5)
     http_router (0.11.2)
       rack (>= 1.0.0)
       url_mount (~> 0.2.1)
-    i18n (0.7.0)
+    i18n (1.1.0)
+      concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
-    json (1.8.2)
+    json (2.1.0)
     lita (4.7.1)
       bundler (>= 1.3)
       faraday (>= 0.8.7)
@@ -40,49 +38,40 @@ GEM
       rb-readline (>= 0.5.1)
       redis-namespace (>= 1.3.0)
       thor (>= 0.18.1)
-    mime-types (2.5)
     mini_portile2 (2.1.0)
-    multi_json (1.12.1)
+    multi_json (1.13.1)
     multipart-post (2.0.0)
-    netrc (0.10.3)
-    nokogiri (1.7.0.1)
+    nokogiri (1.6.8.1)
       mini_portile2 (~> 2.1.0)
-    puma (3.6.2)
-    rack (1.6.5)
-    rake (10.4.2)
-    rb-readline (0.5.3)
-    redis (3.3.2)
-    redis-namespace (1.5.2)
-      redis (~> 3.0, >= 3.0.4)
-    rest-client (1.8.0)
-      http-cookie (>= 1.0.2, < 2.0)
-      mime-types (>= 1.16, < 3.0)
-      netrc (~> 0.7)
-    rspec (3.2.0)
-      rspec-core (~> 3.2.0)
-      rspec-expectations (~> 3.2.0)
-      rspec-mocks (~> 3.2.0)
-    rspec-core (3.2.3)
-      rspec-support (~> 3.2.0)
-    rspec-expectations (3.2.1)
+    puma (3.11.4)
+    rack (1.6.10)
+    rake (12.3.1)
+    rb-readline (0.5.5)
+    redis (3.3.5)
+    redis-namespace (1.6.0)
+      redis (>= 3.0.4)
+    rspec (3.8.0)
+      rspec-core (~> 3.8.0)
+      rspec-expectations (~> 3.8.0)
+      rspec-mocks (~> 3.8.0)
+    rspec-core (3.8.0)
+      rspec-support (~> 3.8.0)
+    rspec-expectations (3.8.1)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.2.0)
-    rspec-mocks (3.2.1)
+      rspec-support (~> 3.8.0)
+    rspec-mocks (3.8.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.2.0)
-    rspec-support (3.2.2)
-    simplecov (0.10.0)
-      docile (~> 1.1.0)
-      json (~> 1.8)
+      rspec-support (~> 3.8.0)
+    rspec-support (3.8.0)
+    simplecov (0.16.1)
+      docile (~> 1.1)
+      json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
-    simplecov-html (0.10.0)
-    term-ansicolor (1.3.0)
+    simplecov-html (0.10.2)
+    term-ansicolor (1.6.0)
       tins (~> 1.0)
-    thor (0.19.1)
-    tins (1.5.1)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.7.1)
+    thor (0.19.4)
+    tins (1.16.3)
     url_mount (0.2.1)
       rack
 
@@ -98,4 +87,4 @@ DEPENDENCIES
   simplecov
 
 BUNDLED WITH
-   1.13.5
+   1.16.4