Implemented handling of non compatible system version + corrected sending of some messages
Link to No compatible version supported
Correctly set some implementation flags
Implemented handling of reception of trackside system version
Removed a spec issue (that was solved).
Completed sending of SESSION_ESTABLISHED message
Corrected some info messages
Corrected a name of an enum (which was renamed)
Merge branch 'OpenETCS/master'
Merge branch 'OpenETCS/master'
Corrected current time sent in MA request