Bump draft-js to 0.9.0
Bump draft-js to 0.9.0

Remove object-assign from devDependencies
Ref: dffbe47001aaf70ef63bfb3e9e3a6417175fbcac

MayconDionisio/megadraft,YesElf/megadraft,YesElf/megadraft,globocom/megadraft,YesElf/megadraft,panter/megadraft,globocom/megadraft,panter/megadraft,MayconDionisio/megadraft,globocom/megadraft,panter/megadraft,MayconDionisio/megadraft