Deltacopy rsync installer script for Windows.

From the readme:

Rsync is good. BackupPC is good. Rsync on Windows is...not so good. We (small-ish IT department) decided on using the DeltaCopy version of rsync (still using Cygwin) to allow our BackupPC server(s) to backup our windows clients. It's fairly quick'n dirty but works well enough for our purposes.

I've posted it on bitbucket in all it's "glory".  (https://bitbucket.org/TechMonkey/backuppcwinclient) Of course folks are welcome to submit patches, suggest changes and the like, but this is mostly an exercise in version control...