Add keyboard shortcuts to header; add group dropdown search

commit 2695ffe0873f238d285fa4ed086c6de16033972e
Merge: 42d5c6b 90fdf7f
Author: James Kiesel <james.kiesel@gmail.com>
Date:   Sun Aug 3 14:10:46 2014 -0400

    Merge branch 'master' into header-keyboard-shortcuts

commit 42d5c6b974ed7a6d6e0cfb37b4f375b5db1d8fde
Author: James Kiesel <james.kiesel@gmail.com>
Date:   Sun Aug 3 14:09:48 2014 -0400

    Reduce min groups for searching to 10

commit 88e27409cc28955aa4ea0c74d1d19572e67de4ef
Author: James Kiesel <james.kiesel@gmail.com>
Date:   Sun Aug 3 14:09:08 2014 -0400

    Make text search case insensitive

commit 82caeb6ed3f9e0dd64c0128c68d17dda3ac6c2ce
Author: James Kiesel <james.kiesel@gmail.com>
Date:   Tue Jul 29 21:54:04 2014 -0400

    Add keyboard shortcuts to header; Add group dropdown search
capability
Merge pull request #1594 from loomio/header-keyboard-shortcuts

Add keyboard shortcuts to header; Add group dropdown search capability