Added a switch for configuration editing mode (to avoid edition while showing/playing solution)
Fixed a bug because of which the user couldn't click on the Nodes/VMs after doing a rewind.
Close #18 : Implemented different animations duration, depending on the VM/action.
#18 : General improvements. Added a minimum consumption of 2 MEM for VMs to avoid 0-duration actions which caused the solver to throw an exception.
Fixed action label overflow style problem.
Merge branch 'develop' of github.com:fhermeni/btrplace-sandbox into develop