Add some vertical space on list of reviews (#22)
Add restrictByQuery for searches to SearchHandler (#5)

Now I'm going to test SearchHandler out...
The new SearchHandler works for search queries (#5).

There are a few changes within, some minor, some major, but
ordinary search queries work.

To do:

 - make the Tag/Collection list activities aware of the new
   intent system.
 - write a restrictByAuthor method, and add awareness of it
   to the activities.
 - add setting for case-insensitive search.