Adds function getFriendsUsingApp
Adds Choose facebook friend.
Returns friends' sex.
Merges CONFLICTS.
Requests friends recommendations when selected.
Removes buyItemModal
Undo removal of friend alert when dismissing alert.
Merge pull request #63 from mbmihura/EasyRecBinding

Easy rec binding
Merge pull request #64 from mbmihura/MakePresent

Make present
Models Category and binds Frontend.
Adds missing .java and orders categories by title.
Merge pull request #65 from mbmihura/ItemCategoryModeling

Item category modeling
Add select category default option.
Alerts when request to Easyrec fails.