Merge pull request #55 from lite3/refactoring

add WorldClock::getInstance() and add dbccMacro.h to DBCCArmatureNode
Merge pull request #57 from lite3/refactoring

fix texture and support starling texture data
add DBCCArmatureNode::createWithWorldClock
Merge pull request #58 from lite3/refactoring

add DBCCArmatureNode::createWithWorldClock
add How to use dragonbones in lua
add new line for markdown
Merge pull request #60 from lite3/refactoring

add How to use dragonbones in lua
DBCCFactory::buildArmatureNode and disabled DBCCFactory::factory
add DBCCArmatureNode::getCCSlot
add macro USING_NS_DB
DBCCArmatureNode instead of DBCCArmature
Merge pull request #61 from lite3/refactoring

DBCCArmatureNode instead of DBCCArmature
add DBCCFactory::destroyInstance()
fix replaceSlot can not use blendMode
fix leak memory
get global position for lua
fix black block after call TextureCache::removeUnusedTextures
Merge branch 'refactoring' into myrefactoring