get a child sprite's world postion

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

Conflicts:
	lib/sprite.c

Signed-off-by: rainfiel <rainfiel@gmail.com>
draw particle on anchor

Signed-off-by: rainfiel <rainfiel@gmail.com>
add rich_text support

Signed-off-by: rainfiel <rainfiel@gmail.com>
rich_text script

Signed-off-by: rainfiel <rainfiel@gmail.com>
add rich text example
label: fix issue when str is NULL
fix label.text gc error

Signed-off-by: rainfiel <rainfiel@gmail.com>
add game pause callback
fix list index error

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