#15 Fixed callback being double called
Merge pull request #16 from saturnism/15-fix-callback-double-calling

#15 Fixed callback being double called
Removed extra println.
Upgraded to android-maven-plugin 3.8.2.  3.7.0 no longer works.
[maven-release-plugin] prepare release 1.1.1
[maven-release-plugin] prepare for next development iteration
Update README.md
Merge pull request #21 from qmwu2000/patch-1

Update README.md