Fixed text color and change search button color.
fixed more of searching infrastructure, first attempt at cache garbage collection, reorganize models in views.
Merge pull request #99 from Kitware/more-search-cleanup

More search cleanup
Merge branch 'master' into view-cleanup

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