Play page format update
add Compare by Numerically
Android Studio Beta and Gradle changes
Merge pull request #79 from rampo/develop

Develop
First try to fix #73 and #75
Code format
Updated compare versions system based on gsdstr code
Code format
Removed useless String
Removed useless code from UpdateChecker.java
Merge pull request #80 from rampo/gsdstr-code

Gsdstr code tested and enhanced
Added all callbacks in UpdateCheckerResult (ex. CustomAcitivty)
Code format
Some methods moved to other packages
Other class moves
Added Catalan values
Merge pull request #81 from alorma/develop

Added Catalan values
Releasing 2.1.0
Merge pull request #82 from rampo/master

Missing commits
Merge pull request #83 from rampo/develop

2.1.0 in to master