add UMengAnalytics 2.2.1 podspec
Merge pull request #9 from minghua/master

add UMengAnalytics 2.2.1 podspec
Add UmengAppNetwork 3.5.6

Signed-off-by: Liu YU <liuyu@umeng.com>
Merge pull request #10 from freedomwalker/master

Add UmengAppNetwork 3.5.6
Merge pull request #4520 from umeng/master

ADDED: UMengAnalytics 2.2.1 & UMengAppNetwork 3.5.6