New Action, Command, Menu item and attribute for value states. Closes
#139
States and processes can now be resized manually, and resize to contents
takes into account the manually defined size. In objects, resize to
contents also takes into account the states. Closes #128
Conditional links now check state against current object value. Closes
#141
Merge branch 'master' of
https://github.com/vainolo/Object-Process-Programming

Conflicts:
	com.vainolo.phd.opm.gef/src/com/vainolo/phd/opm/gef/editor/figure/OPMStateFigure.java
	com.vainolo.phd.opm.validation/src/com/vainolo/phd/opm/validation/OPMNamedElementValidator.java