apply 09749e7 to master
fix BitbucketPullrequestPoller issues
added BitbucketPullrequestPoller tests
BitbucketPullrequestPoller unittests fixed pep8 issues
Removed bare excepts
BitbucketPullrequestPoller removed log messages
Support tagging instances after they have launched.
replaced "except as" syntax w/ 2.4 compatible comma syntax
replace assertions, raise ValueError instead
update steps to use requiredArgs
Fix failing test & shell command
check rc in a callback (errback is not called)
send headers and errno for failed fs commands
removed blank line
Merge branch 'master' of github.com:buildbot/buildbot into nine
add a 'gruntci' Makefile target
clean up steps: LoggingBuildStep subclasses are always old-style, ShellMixin is always new
make RemoteCommand able to handle old and new logfiles
Merge djmitche/buildbot:9/use-data-api-8 (PR #1068)
Merge jpommerening/buildbot:slave-fs-cmds-cleanup (PR #1066)