Bug 1389715 - Upgrade to Mercurial 4.3.1. r=ted, a=release

This is pretty straightforward: we just update some version numbers
and hashes.

The tooltool artifacts were produced and uploaded by me, just like
the last ones. I have some patches to establish a proper toolchain
task to build Mercurial. But it is a bit of a rabbit hole due to the
chicken-and-egg problem of Mercurial needing to be in Docker images.
Preserving the existing install mechanism is the simplest path
forward. Plus we need this patch so we can uplift so earlier releases
get a secure Mercurial in their Docker images.

color and pager are enabled by default in 4.2. So remove configuration
options for them that add no value.

MozReview-Commit-ID: 9pkHX044kV8

--HG--
extra : source : b6840d399d8208d3c6ef890b97cf88e16d41381d
extra : amend_source : 5beb2489c4f1a2a0c1dddd321e115ad7402f0558

testing/docker/recipes/install-mercurial.sh

@@ -13,22 +13,22 @@ if [ -f /etc/lsb-release ]; then
 
     if [ "${DISTRIB_ID}" = "Ubuntu" -a "${DISTRIB_RELEASE}" = "16.04" ]; then
         HG_DEB=1
-        HG_DIGEST=e891b46d8e97cb1c6b0c714e037ea78ae3043f49d27655332c615c861ebb94654a064298c7363d318edd7750c45574cc434848ae758adbcd2a41c6c390006053
-        HG_SIZE=159870
-        HG_FILENAME=mercurial_4.1.2_amd64.deb
+        HG_DIGEST=dd4dd7759fe73985b6a0424b34a3036d130c26defdd866a9fdd7302e40c7417433b93f020497ceb40593eaead8e86be55e48340887015645202b47ff7b0d7ac6
+        HG_SIZE=181722
+        HG_FILENAME=mercurial_4.3.1_amd64.deb
 
-        HG_COMMON_DIGEST=112fab48805f267343c5757af5633ef51e4a8fcc7029b83afb7790ba9600ec185d4857dd1925c9aa724bc191f5f37039a59900b99f95e3427bf5d82c85447b69
-        HG_COMMON_SIZE=1919078
-        HG_COMMON_FILENAME=mercurial-common_4.1.2_all.deb
+        HG_COMMON_DIGEST=045f7e07f1e2e0fef767b2f50a7e9ab37d5da0bfead5ddf473ae044b61a4566aed2d6f2706f52d227947d713ef8e89eb9a269288f08e52924e4de88a39cd7ac0
+        HG_COMMON_SIZE=2017628
+        HG_COMMON_FILENAME=mercurial-common_4.3.1_all.deb
     elif [ "${DISTRIB_ID}" = "Ubuntu" -a "${DISTRIB_RELEASE}" = "12.04" ]; then
         HG_DEB=1
-        HG_DIGEST=67823aa455c59dbdc24ec1f044b0afdb5c03520ef3601509cb5466dc0ac332846caf96176f07de501c568236f6909e55dfc8f4b02f8c69fa593a4abca9abfeb8
-        HG_SIZE=167880
-        HG_FILENAME=mercurial_4.1.2_amd64.deb
+        HG_DIGEST=dd4dd7759fe73985b6a0424b34a3036d130c26defdd866a9fdd7302e40c7417433b93f020497ceb40593eaead8e86be55e48340887015645202b47ff7b0d7ac6
+        HG_SIZE=181722
+        HG_FILENAME=mercurial_4.3.1_amd64.deb
 
-        HG_COMMON_DIGEST=5e1c462a9b699d2068f7a0c14589f347ca719c216181ef7a625033df757185eeb3a8fed57986829a7943f16af5a8d66ddf457cc7fc4af557be88eb09486fe665
-        HG_COMMON_SIZE=3091596
-        HG_COMMON_FILENAME=mercurial-common_4.1.2_all.deb
+        HG_COMMON_DIGEST=045f7e07f1e2e0fef767b2f50a7e9ab37d5da0bfead5ddf473ae044b61a4566aed2d6f2706f52d227947d713ef8e89eb9a269288f08e52924e4de88a39cd7ac0
+        HG_COMMON_SIZE=2017628
+        HG_COMMON_FILENAME=mercurial-common_4.3.1_all.deb
     fi
 
     CERT_PATH=/etc/ssl/certs/ca-certificates.crt
@@ -96,16 +96,15 @@ elif [ -n "${PIP_PATH}" ]; then
 tooltool_fetch <<EOF
 [
 {
-"size": 5133417,
-"visibility": "public",
-"digest": "32b59d23d6b911b7a7e9c9c7659457daf2eba771d5170ad5a44a068d7941939e1d68c72c847e488bf26c14392e5d7ee25e5f660e0330250d0685acce40552745",
+"size": 5475042,
+"digest": "4c42d06b7f111a3e825dd927704a30f88f0b2225cf87ab8954bf53a7fbc0edf561374dd49b13d9c10140d98ff5853a64acb5a744349727abae81d32da401922b",
 "algorithm": "sha512",
-"filename": "mercurial-4.1.2.tar.gz"
+"filename": "mercurial-4.3.1.tar.gz""
 }
 ]
 EOF
 
-   ${PIP_PATH} install mercurial-4.1.2.tar.gz
+   ${PIP_PATH} install mercurial-4.3.1.tar.gz
 else
     echo "Do not know how to install Mercurial on this OS"
     exit 1
@@ -140,9 +139,7 @@ minimumprotocol = tls1.2
 
 # Settings to make 1-click loaners more useful.
 [extensions]
-color =
 histedit =
-pager =
 rebase =
 
 [diff]
@@ -151,12 +148,6 @@ showfunc = 1
 
 [pager]
 pager = LESS=FRSXQ less
-
-attend-help = true
-attend-incoming = true
-attend-log = true
-attend-outgoing = true
-attend-status = true
 EOF
 
 chmod 644 /etc/mercurial/hgrc