Twitter contacts v1

basically realise twitter api via twitter4j lib: login & retrieve
friends
Merge pull request #8 from mrstrlc-yipeng/yipeng-v2

Twitter contacts v1
Linkedin & Twitter v2 by Social Auth

Linkedin api by SocialAuth. Twitter api v2 by Social Auth
SQLite database manipulations

add features of manipulation of database
actionbar/tabs, db support fb&tw&linkedin

add action bar and tabs for all type of contact source.
add SQLite database support (insert and select) for twitter and
linkedin; only insert supoort for facebook.
change a few file names to enhance visibility.
Merge pull request #11 from mrstrlc-yipeng/yipeng-v2

Linkedin & Twitter v2 by Social Auth + SQLite database manipulations + actionbar/tabs, db support fb&tw&linkedin
complete db manipulations for facebook

make possible for facebook to retrieve data from db. clean main activity
Merge pull request #13 from mrstrlc-yipeng/yipeng-v2

complete db manipulations for facebook
feature of updating contact list

add option to update contact list for each source. enhance database
performance.
Merge pull request #14 from mrstrlc-yipeng/yipeng-v2

feature of updating contact list
add widget to handle local contact modifications

add quick contact badge to enable the potential edit of local contacts,
such as the modification of display name of an email contact.
Merge pull request #15 from mrstrlc-yipeng/yipeng-v2

add widget to handle local contact modifications
add options menu item for log out flows

add logout menu item for facebook, twitter and linkedin fragments
enhance list performance of facebook friend list

replace the ProfilePictureView of facebook sdk by ImageLoader of
custom-ui of SocialAuth. update the database support of storing the
profile image url of facebook
Merge pull request #16 from mrstrlc-yipeng/yipeng-v2

add options menu item for log out flows
enhance list performance of facebook friend list
add progress dialogs when retrieving data

add progress dialog in ListContactSplittedActivity and reuse it in
concerned fragments. move some data retrieve operations into async tasks
to support well the progress dialog and to enhance performance.
Merge pull request #18 from mrstrlc-yipeng/yipeng-v2

add progress dialogs when retrieving data