Adds to the maven generators tools support for the generation of RepoElementFields, a class with static properties with the values of repoElement fields. This way, if the api changes, the mokap-backend breaks and we'll notice
Merge pull request #910 from jtorrente/repoelementfields

RepoElementFields (autogenerated class)
Adds LinearGallery and a SelectBox to TransitionSelection.
Adds LinearGallery.
Reduces transitions names