Updated gitignore with IntelliJ IDEA
Java tracker as submodule
Travis support building with android-19

- Fixes #5
Initial gradle setup
Gradle setup for Android
Updated java-tracker submodule to develop branch
Added README

- Fixes #4
Updating java-tracker submodule
Updated Travis with submodule
Fix submodule to use https to clone
Update to Travis to use the Android emulator
wait_for_emulator
Added new Subject class
Moved before_install higher
Re-added gitignore
New Android base project
Fixed build & updated gradle
Updated Subject
Added subproject bit
Added chmod to Travis wait_for_emulator