Hide verbose installation output.
Hide verbose installation output.

Reduces travis log output by about 800 lines.

journeyapps/android-maven-example,srinivasnd/android-maven-example,journeyapps/android-maven-example,embarkmobile/android-maven-example,gildegoma/android-maven-example,lococo-larky/android-maven-example,embarkmobile/android-maven-example,ricardogarfe/android-maven-example,gildegoma/android-maven-example,srinivasnd/android-maven-example,lococo-larky/android-maven-example,ricardogarfe/android-maven-example