refactored search into the header bar.
Added search information widget, needs to fleshed out.
added search information, and changed the navigation to be located on the app-icon and the search-icon.
Merge pull request #82 from Kitware/search-refactor

Search refactor
Merge remote-tracking branch 'origin/master' into workbench-subwidgets

Conflicts:
	web/src/js/app/StandaloneApp.js
	web/src/js/app/views/Composite.js