Moved DefaultBodyDescriptor to the stream package as requested by Oleg (MIME4J-157)
This reintroduce "commons-logging" dependency to the stream package, so this will need a bit more care later, however this is not a big issue, as MIME4J-158 was an ongoing effort, still.

git-svn-id: https://svn.apache.org/repos/asf/james/mime4j/branches/cycleclean@898843 13f79535-47bb-0310-9956-ffa450edef68
7 files changed