I18N text.
Some skin.json adjustments.
Deleted unused action.
Game now uses a Documentation component instead of Note.
Q.getName(...) returns defaultValue if mkodelEntity is null.
Fixes DeleteProject action/test.
Small adjustments in mockup-core.
Adds RepositoryManager to MockupController.
Adds repository actions.
Adds RepositoryVew, LibrariesView and RepositoryItem.
Improves BaseGallery and GalleryItem.
Adds PlayView, ProjectsView, ScenesView and other related widgets.
Adds two mockup actions.
Merge pull request #727 from RotaruDan/iconWithPanelImprovements

Galleries and widgets improvements
Changed Skin and I18N
Added some actions.
Added a new option in move tween.
Some changes for test
Some minor changes in IconWithPanel classes.
Added new widgets for make the panels of prefabs.