Theme updates
New theme
Main CSS file updates
base64 URI images used instead of 3 files

Also fixes to white-space and removed other experiemental classes
(Marijn H did all this)
License update
Now includes css hint, css lint and sql hint
Now includes css hint, css lint and sql hint
Update from 3.16 to 3.19

(Includes updates from the recent set of commits)
Now using CodeMirror 3.19
CSS hinting now on SQL, CSS and XML

Applied with a smarter approach to the code here