Merge remote-tracking branch 'fluid-project/master'

* fluid-project/master: (57 commits)
  GPII-135: Added a comment
  GPII-135: clean up
  GPII-135: removed comment, corrected typo
  GPII-135: updated to the latest infusion
  GPII-135: fixed a bug with toggling contrasts
  GPII-142: Theme overrides for demo content
  GPII-134: removed uneeded comment.
  GPII-135: toggling between contrasts
  GPII-135: created a new base grade for the panels.
  GPII-142: Small chrome fix
  GPII-134: Merged changes from Master. Fixed positioning of checkbox in high contrast to be similar to the default view. Panel Bar now appears white on black.
  GPII-142: Header, breadcrumbs, prev/next, menu, etc. css tweaked
  FLUID-4947: added more improvements to announcements.
  GPII-135: removed console log
  GPII-135: Low contrast preset added.
  GPII-135: Moved lib to shared directory
  FLUID-4947: removed a string length constraint.
  GPII-135: Upgrading Infusion
  GPII-145: added line-height to keep icons centred
  GPII-145: added line-height to keep icons centred
  ...
Merge branch 'master' of github.com:fluid-project/prefsEditors