Merge pull request #197 from diegofdz/master

Ok, merged!
Bug fix #200 :
The description text box in both DataDictionary and Test windows is updated according to the model's related requirements.
Update of the explanation for many elements
Merge remote-tracking branch 'origin/master'
Merge pull request #206 from diegofdz/master

Perfect, merged!
Bug fix #205 : Create a failed expectation when the interpreation of the model fails
Merge remote-tracking branch 'origin/master'