Added signals.
Added in a basic Splash screen.
Commit this file as it won’t allow a merge without it.
Merge branch 'development' of https://github.com/danthaiwang/tdgame into development

# By danthaiwang
# Via danthaiwang
* 'development' of https://github.com/danthaiwang/tdgame:
  Stopped tracking bin-debug
  Showing loading indicator when loading cargo.
  Fixed bug when sometimes the cell can't be found.
  Stopped tracking files.
  Renamed ignore file.

Conflicts:
	bin-debug/TowerAttack.swf