Merge pull request #3 from Trinea/master

merge
Add LoopingViewPager,EasyAndroidAnimations
add android-phased-seek-bar,PullZoomView
add android-pdfview,android_page_curl
Add zhihu and android-plugin
Add android-plugin and zhihu
Add QQ group 4
Add some to be added
Merge pull request #62 from AvatarQing/master

Add LoopingViewPager, EasyAndroidAnimations, android-phased-seek-bar, PullZoomView, android-pdfview, android_page_curl
Add SmartAppUpdates 增量(差分)升级
Add Android Dynamic Loader
Add Android-InsecureBank
Modify link
Add DynamicCardLayout
Add Emoticons-Keyboard
Add Android Typeface Helper
Add AKParallax-Android
Merge pull request #67 from inferjay/master

Add DynamicCardLayout,Emoticons-Keyboard,Android Typeface Helper,AKParallax-Android
Update Readme.md
Add android-anim-playground