Merge with develop
Merging develeop after GDG DevFest
Integrate zxing QR Clue; animation commented
Merge pull request #1 from joaobiriba/droidconHunt

Integrate zxing QR Clue; animation commented
First build tailored for DroidCon with Game Services customized and logos
Using internal QR reader as choice
Customized completed
Droidcon final huntdata
Changing strings, localize them to Codemotion
Porting to Codemotion
Ids of Google Play Game Serivces
Optional permission NFC
Codemotion Hunt clues