fixed #2085: update submodule commit ID
Merge pull request #906 from dingpinglv/Iss2082_FixSomeBugs

fixed #2082 modify codes of cc.setBlending to fit WebGL's bug
Merge pull request #907 from linshun/iss2085_v2.1.2beta2

fixed #2085: update submodule commit ID
issue #2085: update submodule commit ID.
Merge pull request #908 from linshun/iss2085_v2.1.2beta2

issue #2085: update submodule commit ID.
issue #2085: update version number.
Merge pull request #909 from linshun/iss2085_v2.1.2beta2

issue #2085: update version number.
fixed #2082 Add a file to build.xml