Setup ruby version for CI

Author: mtodd

script/cibuild

@@ -7,6 +7,10 @@
 cd $(dirname "$0")/..
 export PATH="$(pwd)/bin:$(pwd)/script:$(pwd)/node_modules/.bin:/usr/share/rbenv/shims:/opt/phantomjs/bin:/usr/share/nvm/0.8.11/bin:$PATH"
 
+# setup Ruby version
+if [ -d /usr/share/rbenv/shims ]; then export PATH=/usr/share/rbenv/shims:$PATH; fi
+export RBENV_VERSION="1.9.3-p231-tcs-github"
+
 # Write commit we're building at
 git log -n 1 || true
 echo