Ray/moar modules

Allow multiple modules, delete unused parameters, unit tests.

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[INFO] Reactor Summary:
[INFO] 
[INFO] Mortar (Parent) ................................... SUCCESS [0.405s]
[INFO] Mortar ............................................ SUCCESS [6.716s]
[INFO] Mortar Sample ..................................... SUCCESS [16.002s]
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[INFO] BUILD SUCCESS
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[INFO] Total time: 24.507s
[INFO] Finished at: Tue Nov 12 21:25:41 CET 2013
[INFO] Final Memory: 28M/81M
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