Remove unused Init method (PrefManager)
Add JavaDOC (PrefManager)
Change method names to be more consistent (PrefManager)
Fix indents & remove notes & reorder (PrefManager)
Merge pull request #246 from ratan12/tablet

Tablet UI support
Merge pull request #245 from ratan12/PrefManager_cleanup

Pref manager cleanup
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)