Dev Info: Svnmerge Updated

svnmerge in our repotools repository (http://svn.digium.com/svn/repotools/svnmerge)
has just been updated to the latest upstream code, which drastically improves avail/merge speed due to checking fewer revisions. This new version is also required for 'automerge' setup, because it allows the names of the properties to be specified on the command line.

There still seems to be an issue with automerge, though... it applies the updates to the branch, but does not update the property showing what it did, so the next time it runs it believes there are still revisions to be merged.