Alpha: Allow searching from special page

On alpha add a button to the top right corner of the ui on special
pages so users can search from them

I *want* this so bad.

Image: http://thenounproject.com/noun/search/#icon-No15028

Patch Set 3: modified the search icon to match the shade of grey of the
hamburger, adjusted its size to be the same as hamburger icon (jgonera)

Change-Id: I3f5afae2ca7228578e408e25f16f489aac194d1b