Intent filtering: Centralize and abstract

This moves all intent filtering to use the new IntentFilterActivity
which handles verifying the site and launching the correct activity.
This is in preparation for more intent filters.
Add intent filtering for categories
Add intent filtering for search
Bump version code
Merge branch 'category-intent-filters' into themes-cleanup

Conflicts:
	App/src/com/dozuki/ifixit/ui/guide/view/GuideViewActivity.java