EA_MODEL requirement 5.5.3.1.3. Updated, no errors.
EA_MODEL Requirements 5.5.4.1.1 - 5.5.4.1.1.1 - 5.5.4.1.2 Degraded situation of End Of Mission
EA_MODEL correction of Laurent for drag and drop specifications into the model view
Merge branch 'openETCS/master'
Merge pull request #308 from diegofdz/master

There are still some implementation issues, but I merge it and I'll correct it myself later.