Rakefile: adding ensure_postcommit_hook task
jenkins_integration: cleaning up sync_changes to stop ignoring VERSION
Rakefile: tying VERSION detection to testing (better gate for 'needs new version' than staging)
Merge branch 'master' of github.com:infochimps-labs/bare-pantry

Conflicts:
	Rakefile
jenkins_integration: tying VERSION detection to testing
jenkins_integration: ensure that pull hits master (not other branches)
Version bump to 0.1.51