Allow for building from the command line with maven

Further to issue #1, I've made a pom.xml that includes some libraries that compile the xtend code. For some strange reason, I had made a build without patching the code but I can't replicate it — so this patch changes  a small bit of code and breaks the font preference in the process. I don't understand code much so I won't be disappointed if you reject the pull request because of theses changes. You may need to install the 4.3 android.jar to your local cache; if necessary, change the platform to 4.1.1.4 or another.