Fix known FC bug

- Fix life-cycle of MediaPlayer in StudyMode
- Fix activity life-cycle in StudyMode and RelaxMode
- Fix some other bugs....
- some future improvement...
Fix resources errors

- Replace some web-view resources for better display
Fix Story not show in RelaxActivity
Fix bug in RelaxActivity cause app crash

- Cancel counter and snooze counter in RelaxActivity
Merge pull request #3 from longtober/master

Fix all known FC bug + some resources errors