drop official support for node v0.6.x
drop official support for node v0.6.x

mahdaen/swig,jrvldam/swig,DragWeb/swig,cwhatley/swig,genify/swig,xiaoyang2022/swig,genify/swig,CuteSephiroth/swig,CuteSephiroth/swig,jerrylin1002/swig,Lochlan/swig,zongkelong/swig,gogobook/swig,jrvldam/swig,mrazvan92/swig-async,zetlen/swig,paularmstrong/swig,cgvarela/swig,jerrylin1002/swig,mrazvan92/swig-template-callback,zongkelong/swig,benpptung/swig,mahdaen/swig,gold3bear/swig,gitoneman/swig,gold3bear/swig,mrazvan92/swig-async,benpptung/swig,CuteSephiroth/swig,paularmstrong/swig,mrazvan92/swig-template-callback,Lochlan/swig,jerrylin1002/swig,DragWeb/swig,jrvldam/swig,gold3bear/swig,Lochlan/swig,notthetup/swig,gogobook/swig,genify/swig,zongkelong/swig,DragWeb/swig,cgvarela/swig,notthetup/swig,gitoneman/swig,cgvarela/swig,cwhatley/swig,Thunf/swiger,xiaoyang2022/swig,mrazvan92/swig-template-callback,xiaoyang2022/swig,cwhatley/swig,Thunf/swiger,Thunf/swiger,benpptung/swig,notthetup/swig,paularmstrong/swig,mahdaen/swig,gogobook/swig,mrazvan92/swig-async,gitoneman/swig,zetlen/swig,zetlen/swig