Tinted HintsPopupContoller

Semantic change in color (#define removed and defined a new category to provide the colors with meaning for the app)
Merge remote-tracking branch 'oswaldo/master'
"i" button in CardView didn't work
Minor cosmetic changes in popups
Merge remote-tracking branch 'oswaldo/master'

Conflicts:
	IrregularVerbs/HomeViewController.xib
Small  changes in Info Popup
Changed xib colors of search bar and segmented controls to default (they are now set in code), because they weren't the same color as the NavigationBar
CardsTableViewController cleaning
Deleted color definition file trying to merge
Merge branch 'rafamaster' into colors
Merged
Fixed colors
Deleted colordefinitions file
Merge branch 'colors'