Merge pull request #18 from runger/master

ASDK-174 Updated android-maven-plugin version (and some others) to latest
Merge pull request #19 from runger/master

ASDK-174 updated to Android SDK 19
Merge pull request #20 from runger/master

ASDK-174 downgraded to android-maven-plugin 3.8.1
ASDK-175
ASDK-175