add an option arg for multi_draw
增加双击的手势
Merge branch 'master' of ssh://oa.ejoy.com/ejoy2d
useless checktype
Merge branch 'master' of ssh://oa.ejoy.com/ejoy2d
get children name

Signed-off-by: rainfiel <rainfiel@gmail.com>
Merge branch 'master' of ssh://oa.ejoy.com/ejoy2d
Merge branch 'public'
label support additive color