Merge pull request #108 from fatchicken007/master

Refactor code and fix bugs in battle controller
Refactor quests and clean up code
Do not add experience upon winning a quest
Add button for completing quests
Merge pull request #109 from aellawind/master

Refactor quests, add button to complete quests, do not add experience for winning quests
Add prompt to add friends when clicked from list