Ant task and maven project restructuring

In order to add an ant task I did the following in this pull request (summary of the 29 commits in this pull request):
- moved src folder to mongeez/src (feel free to diff the contents to verify)
- pom.xml is now artifactId: mongeez-parent, commons-lang3 and testng dependencies kept in the parent along with project information and modules section
- added mongeez/pom.xml containing the rest of the mongeez.jar specific dependencies (upped mongo-java-driver version to 2.11.2 as well)
- ant-task sub directory added with a single pom file, the MongeezRunner ant task, and a unit test

I am also using the de.flapdoodle.embed.mongo to manage a mongod instance running on an available port for the ant task tests.