Bug 1272629 - Add bison package installation to taskcluster docker setup script. r=dustin

Update centos6 build version from 0.1.6 to 0.1.7

MozReview-Commit-ID: 66Eu8lCfOHy

testing/docker/centos6-build-upd/Dockerfile

@@ -1,4 +1,4 @@
-FROM          taskcluster/centos6-build:0.1.6
+FROM          taskcluster/centos6-build:0.1.7
 MAINTAINER    Dustin J. Mitchell <dustin@mozilla.com>
 
 ### update to latest from upstream repositories

testing/docker/centos6-build-upd/VERSION

@@ -1 +1 @@
-0.1.6.20160329195300
+0.1.7.20160719131900

testing/docker/centos6-build/VERSION

@@ -1 +1 @@
-0.1.6
+0.1.7

testing/docker/centos6-build/system-setup.sh

@@ -270,6 +270,9 @@ install libuuid-devel
 install openssl-static
 install cmake
 install subversion
+
+# required for building binutils
+install bison
 run
 EOF
 

testing/docker/desktop-build/Dockerfile

@@ -1,4 +1,4 @@
-FROM          taskcluster/centos6-build-upd:0.1.6.20160329195300
+FROM          taskcluster/centos6-build-upd:0.1.7.20160719131900
 MAINTAINER    Dustin J. Mitchell <dustin@mozilla.com>
 
 # Add build scripts; these are the entry points from the taskcluster worker, and