Modified package, added entity settings menus plus other things !

README.md (modified) :
- Modified package link, please re-download it !

Info.java (modified) :
- Added inEditor field, initialized as false

Localization.java (modified) :
- Added a special reading mode, that can be used for adding labels that
do special things
- Added special character : '\n'

Editor.java (modified) :
- Added a line that sets Info.inEditor to true

EntityMode.java (modified) :
- Added the entity setting menu

ScriptMode.java (modified) :
- Removed unnecessary commented lines

BlockActivate.java (modified) :
- Added support for the new entity setting menu in the editor

BlockButton.java (modified) :
- Added non-visible button block variant
- Added support for the new entity setting menu in the editor

BlockSpikes.java (modified) :
- Added support for the new entity setting menu in the editor

Entity.java (modified) :
- Added two inheritable functions : settingClicked(int, AbstractWorld)
and getEditorSettings(AbstractWorld)
- Removed inheritable function : changeData(AbstractWorld)

SelectionBox.java (modified) :
- Modified the selection box so it can work with 16-sized text

AbstractWorld.java (modified) :
- Added support for localization in dialog boxes

ScriptManager.java (modified) :
- Fixed a bug with the first available script ID calculation
- Removed firstAvailableScript field

Package (modified) :
- Added the editor sprite for invisible button in
spr/tilesets/Blocks.png
- Added spr/tilesets/Transparent.png
- Modified L10n files
- Modified world