Added defined vars for use in theme.
Removed unused defined variable.
Merge pull request #32 from MorganDawe/7.x-METRO-93

Added defined vars for use in theme.
Merge pull request #33 from MorganDawe/7.x-METRO-88

Added form alter for collection search to match provided wireframes.
Merge branch '7.x' of github.com:discoverygarden/metrodora into 7.x-METRO-88
Updated form alter.