Merge branch 'master' into nine
Merge rahuln55/buildbot:nine (PR #1104)
fix pyflakes
Merge branch 'master' into nine
Further change to support empty SVN passwords.
Add unit test for empty SVN password.
fix more pyflakes discovered by pyflakes-0.8.1
Merge kporwal/buildbot:fix-2715 (PR #1099)
Merge branch 'master' into nine

Conflicts:
	master/buildbot/status/web/console.py
	master/buildbot/status/web/templates/jsonhelp.html
	master/buildbot/status/web/waterfall.py
Merge madazone/buildbot:custom-forcescheduler-button-name (PR #1091)
Merge branch 'master' into nine

Conflicts:
	master/buildbot/status/web/templates/forms.html
add documentation for Force Scheduler's 'buttonName' argument
Merge santegoeds/buildbot:support-empty-svn-password (PR #1117)
Support empty password for SVNPoller
Fix pep8 errors
Fix shell hangs on checkconfig command when using http steps
Add sharedSession to prevent blocking session
Merge jaredgrubb/buildbot:SlaveInfo-UnRevert (PR #1109)

+autopep8
Merge branch 'master' into nine
Merge branch 'master' into nine