Refactor and update model element colors
Allow to modify double values using the EFSDriver
Allow to display external events as actions in the time line (the same as the actions located in a step)
Model element location update
Added the braking curves verification in the nightbuild
Release 1.0.21
Use version 2.29.2 of XMLBooster
Provide the right display information for ModelInterpretationFailure
Provide an explanation for a model interpretation failure
Compute the explanation when an interpretation failure occurs
Update README.md

Added EUPL information.
Merge branch 'EFSMainbranch/master'
First iteration of the software bus. Still issues pending, but a great step further nevertheless.
Use Mutexes instead of thread synchronization.
Note : client disconnection is not yet taken into account
Merge branch 'EFSMainbranch/master'

Conflicts:
	ErtmsFormalSpecs/src/DataDictionary/src/EFSSystem.cs
	ErtmsFormalSpecs/src/GUI/src/TestRunnerView/Window.cs