Adding OnOpenListner for Secondary Menu
Fixing Spelling mistake
Update to android-maven-plugin 3.6.0
Merge pull request #491 from NineWorlds/android-sdk-21

Update to android-maven-plugin 3.6.0
Merge pull request #487 from marutib/master

Adding OnOpenListner for Secondary Menu
Update README.md
Merge pull request #1 from jfeinstein10/master

Pull on Aug.23