rm .gitattributes file
Merge branch 'dev'
Merge remote-tracking branch 'origin' into refactoring
Merge branch 'refactoring' of github.com:zrong/DragonBonesCPP into refactoring
Merge remote-tracking branch 'dbs/refactoring' into refactoring
replace dragonbones::String by std::string
Merge pull request #45 from zrong/refactoring

replace dragonbones::String by std::string