Merge pull request #726 from RotaruDan/iconWithPanelImprovements

Icon with panel improvements
Merge pull request #727 from RotaruDan/iconWithPanelImprovements

Galleries and widgets improvements
Merge pull request #728 from RotaruDan/cameraView

Image capture, automatic save and open last game/view.
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.
Added ChangeVariable prefab and Visibility prefab.
Added tweens prefab.
Created LeftEditionToolbar and TopEditionToolbar
Some minor fixes.
Merge pull request #729 from gorco/editionView

Edition view
I18N help messages.
Adds HelpMessage.
Adds HelpSequence and creates helps messages for some views.
MockupViews displays a HelpSequence when setting a view.
Adds PositionedHiddenPanel.
Refactoring for IconWithPanel. SwarchWidget, HiddenPanel and PrefabPanel fixes.