Merge pull request #84 from fatchicken007/master

Fix bug where similar items can't be equipped
Update README.md
Adding readme images
Updated readme
Added challenges
Merge pull request #85 from conorfennell/master

Added challenges
Remove cordova console plugin
Save user after adding and stop loader if no friends exists
Check if attributes is greater than zero to display plus button
Show user in battles screen if user requests battle
Change display name to username
Update application version