update UMengSocial to 3.1
[Update] ReactiveCocoa 2.1.5, raised deployment target of all versions
 >= 2.1.1 to 6.0
Merge pull request #4971 from corristo/master

Update to ReactiveCocoa 2.1.5 — see discussion in #4971 for details
Cordova 3.1.0 update to include plugins subspecs

* All podspecs are related thus a single pull request is needed for the first commit.
* Future updates could be done separately.
* Follows up #4539 discussion.
Add BDDynamicGridViewController 0.0.4
Merge pull request #5006 from norsez/master

Add BDDynamicGridViewController 0.0.4
Merge pull request #5005 from rivera-ernesto/cordova_3.1.0_update

Cordova 3.1.0 update to include plugins subspecs
Merge pull request #14 from Gavin-Ye/master

update UMengSocial to 3.1
Adding BDBSplitViewController
Merge https://github.com/CocoaPods/Specs
Merge pull request #5008 from bdbergeron/master

Adding BDBSplitViewController
Merge pull request #5007 from umeng/master

ADDED: UMengSocial  3.1
add aranalytics 2.3.0
updated AHCarousel.podspec
MCSMKeychainItem 1.0.2
Merge pull request #5014 from sania-ashraf-confiz/master

updated AHCarousel.podspec
Merge branch 'master' of git://github.com/CocoaPods/Specs