Update installer to support new worker functionality. Closes dancryer…

…#1094

Fixes

Set the CommandExecutor buildPath property when a build is created.

Closes dancryer#556

Fixing login is disabled checks

Merge branch 'master' of github.com:Block8/PHPCI

Fixing Polish language name, docblocks in Lang helper.

Fixes for date JS issues in Safari

Front-End Upgrade: New UI Based on Admin LTE.

Closes dancryer#673

Save the build log every time the log is updated.

Fixing the inevitable PHPCS error