Added editImage method to Platform.Added editImage
Added I18N strings.
Moved EfectsComponent to ElementEdition.
Small fimprovements in eAdventure Mockup.
Added new useful functions for EditorGameAssets.
Added LaunchExternalEditorLIstener.
Implemented editImage method on AndroidPlatform.
Renamed EffectsComponent to EditorsComponent (UI widgets).
Added ReplaceEntity action.
Fixed small bug in ElementButton.
Added ReplaceEntityTest.
Merge pull request #494 from RotaruDan/externalEditionTool

External edition tools