Merge pull request #35 from phuongnq/master

make asynchonorous call to get profile picture
Merge pull request #36 from phuongnq/master

add follow button to User Profile
Merge pull request #37 from phuongnq/master

add find friend view - follow all button
Merge pull request #38 from phuongnq/master

fix query get facebook friends
Merge pull request #39 from phuongnq/master

add username & profile picture
Merge pull request #40 from phuongnq/master

new code of find friends
Add details to Notification List

Add activities which toUser is currentUser to Notification List
Modify leftSideMenu

Combine newsFeed, questionList, myList, notifications into “Home”
Eliminate title in leftSideMenu

To make it simpler
Modify leftSideMenu design
Add some icons
Fix "load more" disappear bug in NotificationListView

Just don’t override the numberOfRowsInSection method
Add bold attribute to notification text

Make the notification text have some words bold just like Facebook
notification
Modify NewsFeed into indexPath.section
Fix Message Table

Each two-person will be one key. The content of messages will be an
array in where element is a message.
Drop class Review & simplify viewActivity

- We don’t need Review class alone anymore
- Each view of one person to another person’s video will be saved in
only one row of the Activity Table, the content will carry information
of each view
Add badge number into notification tab bar item
Reset badge after user select the notification tab
Add transition from FindFriend to UserProfileView

Some users wanna check who the person is before follow her
Filter News Feed for only activities of followingFriend

Only output activities where toUser or fromUser is followingFriend and
currentUser is not participated directly in.