Make sure to un-highlight edit/view tools when switching.
Make sure to un-highlight edit/view tools when switching.

Fixes issue #14.

Change-Id: I6b1b228543442370b077f1322d7de4dd421d924d

wadejong/avogadroapp,OpenChemistry/avogadroapp,ghutchis/avogadroapp,wadejong/avogadroapp,wadejong/avogadroapp,OpenChemistry/avogadroapp,ghutchis/avogadroapp,OpenChemistry/avogadroapp,ghutchis/avogadroapp,ghutchis/avogadroapp,OpenChemistry/avogadroapp