Add a build.gradle for gradle module
Use auto updatable android gradle

Declares dependency as: com.android.tools.build:gradle:0.4.+

https://plus.google.com/u/0/108967384991768947849/posts/ZWoLfsto98s
Remove hardcoded string on TAG variable
ignore idea's .iml files
Merge pull request #537 from huahang/master

ignore idea's .iml files
Merge pull request #525 from ConAntonakos/patch-1

Remove hardcoded string on TAG variable
Merge pull request #467 from linuxmotion/master

Add a build.gradle