v1.2.0 changelog [skip ci]
v1.2.0 changelog [skip ci]

kaicataldo/babel,hulkish/babel,babel/babel,existentialism/babel,kaicataldo/babel,shuhei/babel,samwgoldman/babel,jridgewell/babel,guybedford/babel,PolymerLabs/babel,claudiopro/babel,kellyselden/babel,Skillupco/babel,chicoxyzzy/babel,guybedford/babel,hulkish/babel,existentialism/babel,PolymerLabs/babel,jridgewell/babel,maurobringolf/babel,kellyselden/babel,maurobringolf/babel,shuhei/babel,hzoo/babel,claudiopro/babel,babel/babel,Skillupco/babel,jridgewell/babel,vadzim/babel,PolymerLabs/babel,jridgewell/babel,chicoxyzzy/babel,hulkish/babel,chicoxyzzy/babel,claudiopro/babel,hulkish/babel,babel/babel,chicoxyzzy/babel,kaicataldo/babel,Skillupco/babel,samwgoldman/babel,shuhei/babel,hzoo/babel,hzoo/babel,existentialism/babel,kaicataldo/babel,maurobringolf/babel,guybedford/babel,vadzim/babel,samwgoldman/babel,Skillupco/babel,kellyselden/babel,hzoo/babel,kellyselden/babel,babel/babel