New branch refactoring the interfaces to support jLEMS
jLEMS integration ongoing
Render at least once each aspect
pause and stop now work properly
init now can be re-used to "reset" the simulation
Changed StateSet to StateTree. Added visitors as a way to operate with
the tree.
Update to Java 7
Update to OSGi 5
Stop fixed
Decreased client timer to 40ms. Method rename.
Merge pull request #32 from openworm/interfacesRefactoring

Interfaces refactoring