Fix card that were not centered (DetailView & Profile)
Reorder variables (Card)
Replace docs with normal notes
Remove unnecessary card attribute (values & Cards)
Add Java documentation to all the methods (Cards)
Add cardview of support library (Gradle)
Remove background color for compatibility (Cards)
Use the real Cards of the support library (Cards)
Change padding dp to the recommended padding (Cards)
Merge pull request #247 from ratan12/Cards_cleanup

Cards (cleanup, CardView & JavaDOC)