feat(test): Add test infrastructure

Empty test does nothing
Merge pull request #43 from ploneintranet/test_infrastructure

feat(test): Add test infrastructure
App tiles
Workshop sketches
Slide bank icon
Current tab state
Elegant appearance
Colours
Toolbar buttons styling
Sweeter icons for Workspace sidebar
Activity stream in workspace
More subtle icons
Nicer icon treatment
distupload: updated latest file to recent js bundle
Various design studies for dashboard. Improved data model for workspaces.
Fresh layout of homepage. Some more structure to the tasks portlet
More elegant tabs treatment on homepage
Improved cross browser appearance of tabs bar
Obsolete
Mutations byline