Merge pull request #55 from zaojiahua/master

add dropblood to actor
Add avatar frame
Merge pull request #56 from RaoZiJian/master

Add avatar frame
enable depth test for everything
Merge branch 'master' of https://github.com/fusijie/FantasyWarrior3D

Conflicts:
	src/Piglet.lua
Merge pull request #57 from Wu-Hao/master

enabled depth test for all 2d elements,
fix targeting angle problem
Merge pull request #58 from Wu-Hao/master

fix AI targeting angle problem
optimize dropblood