Merge pull request #173 from xingsenma/autotest

fixed Add AutoTest for NodeTest\TileMapTest
fixed #2269 add a condition to LabelTest for LabelTTFStrokeShadowTest
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js-tests into Iss2269_FixBugForLabelTest
Merge pull request #175 from dingpinglv/Iss2269_FixBugForLabelTest

fixed #2269 add a condition to LabelTest for LabelTTFStrokeShadowTest
CCLabelTTF test cleaned up
Merge pull request #177 from carlomorgantinizynga/newLabelTTFShadowTest

CCLabelTTF test cleaned up
removes null from sequence
Place tmx maps in correct z order
LabelTTF shadow + stroke test is not the 1st entry
Merge branch 'master' of https://github.com/cocos2d/cocos2d-js-tests into autotest
add preSet