fixed styling on login and register modals
added new sprite file from ryan
how it works mobile images
made default text color gb-primary brown
form title becomes gb red
swapped out tablet images for how it works
update locations styling
update brand-primary color to red
renamed image file so it doesn't cause grunt problems
locations tile background color
fix charities page
Merge pull request #180 from goodybag/180-color-switch

finish color switch
Merge branch 'master' into 160-backbone-explore