fix warning, syntax error
start a build.xml for ant
fix a bug in display of drone
build.xml: fix bug that delete **/*.dart
fix of widget by forking
add button to access area
fix delete/symlink issue into build.xml
version: 0.6.0
build: fix issue in remove_packages
avoid initial display of x-modal(s) until (dart/js) is loaded
version: 0.6.1
avoid initial display of x-modal(s) until (dart/js) is loaded (cont.)
Merge branch 'master' into exp_entitysystem

Conflicts:
	lib/src/entities.dart
	pubspec.yaml
fix merge
es: add DroneGenerator
clean
use davidB github's fork for dartemis
move params of drone's acc and rot to System_DroneHandler
reset area by creation a new World
es: add PhysicCollisions (detection)