Update submodule netcipher, setup tracking branch 'master'

Make use of git >= 1.8.2 feature to track submodule brach and allow easy updates by

    git submodule update --remote

More info: http://www.vogella.com/tutorials/Git/article.html#submodules
Update setup-ant.sh

libs/android-support-v4.jar file was removed in commit a9b36df80e5f43159a7d612fec04cc00681a4b17
Merge pull request #105 from kuc/update-submodule

Update submodule and submodule settings