according to...the changelogs.......
danielk synchronised the charonmedia trunk with the pluto-lmce vendor branch, some time ago.
the difference lies in the build scripts, which, in trunk are intended to be built on systems outside of pluto's build farm.
However, the release scripts in trunk still has some bits of the package building process which need to be ported over to use the temporary mysql build server that's running on port 4306 during a full build...
-Thom