project libraries update.
Merge pull request #802 from ne0fhyk/feature_libraries_update

Project libraries update
Starting to work on the follow-me UI
Android: Fixed wrong id on buttons.
Follow: By default use Leash for follow me, with 2Hz update rate
Merge pull request #808 from arthurbenemann/FollowImprovements

Follow detail fragment
adding support for continuous integration via travis ci.
updated gradle build files to allow for a successful build process.
adding travis ci build status to the README file.
testing travis ci deployement of the built apk files.
updated travis ci script.
updated travis ci script.
attempt to fix travis ci build issues.
attempt to fix travis ci build issues.
specifying the apk files to upload to github releases.
testing the deployment configuration parameters
Merge branch 'master' into feature_travis_ci

Conflicts:
	Android/build.gradle
Fix readme to point to the correct CI server
Commenting the deployment from the travis script for the moment
Merge pull request #821 from DroidPlanner/feature_travis_ci

Feature travis CI