Bump GitHub API to 1.50-SNAPSHOT
Bump GitHub API to 1.50-SNAPSHOT

Change-Id: I6d8dce82573bd6f2ba9d4432461097c4746be51d

thewtex/gerrit-plugins-github,mohitsethi/gerrit_github,cybojenix/github-plugin,cjh1/github-plugin,mohitsethi/gerrit_github,Kanth7686/TestInfoblox,Kanth7686/TestInfoblox,GerritCodeReview/plugins_github,thewtex/gerrit-plugins-github,GerritCodeReview/plugins_github,cjh1/github-plugin,jdoe123/plugins-github,cybojenix/github-plugin,Kanth7686/TestInfoblox,GerritCodeReview/plugins_github,cybojenix/github-plugin,jdoe123/plugins-github