
Over on the EC branch, we need to be able to parse multipart MIME documents in the object server. The formpost middleware has a perfectly good MIME parser, but it seems sort of awful to import things from formpost in swift/obj/server.py, so I pulled it out into common.utils. Change-Id: Ieb4c05d02d8e4ef51a3a11d26c503786b1897f60