Python-rsync

* Yet more large file support fixes.

* `extern "C"` guards in librsync.h to let it be used from C++.

* Removed Debian files from dist tarball.

* Changed rdiff to an installed program on "make install".

* Refactored delta calculation code to be cleaner and faster.

* \879763: Fixed mdfour to work on little-endian machines which don't
like unaligned word access. This should make librsync work on
pa-risc, and it makes it slightly faster on ia64.

* \1022764: Fix corrupted encoding of some COPY commands in large
files.

* \1024881: Print long integers directly, rather than via casts to
double.

* Fix printf formats for size_t: both the format and the argument
should be cast to long.

* Large file support fixes.

* [v]snprintf or _[v]snprintf autoconf replacement function fix.

* Changed installed include file from rsync.h to librsync.h.

* Migration to sourceforge for hosting.

* Rollsum bugfix that produces much smaller deltas.

* Memory leaks bugfix patches.

* mdfour bigendian and >512M bugfix, plus optimisations patch.

* autoconf/automake updates and cleanups for autoconf 2.53.

* Windows compilation patch, heavily modified.

* MacOSX compilation patch, modified to autoconf vararg macro fix.

* Debian package build scripts patch.

* Bugfix patch from Shirish Hemant Phatak

* Fixes for rsync.h from Thorsten Schuett <thorsten.schuettzib.de>

* RLL encoding fix from Shirish Hemant Phatak <shirishnustorage.com>

* RPM spec file by Peter J. Braam <braamclusterfs.com>

* No (intentional) changes to binary API.

* Big speed improvements in MD4 routines and generation of weak
checksums.

* Patch to build on FreeBSD by Jos Backus <josbcncdsl.com>

* Suggestions to build on Solaris 2.6 from Alberto Accomazzi
<aaccomazzicfa.harvard.edu>

* Add rs_job_drive, a generic mechanism for turning the library into
blocking mode. rs_whole_run now builds on top of this. The
filebuf interface has changed a little to accomodate it.

* Generating and loading signatures now generates statistics.

* More test cases.

* I suspect there may be a bug in rolling checksums, but it probably
only causes inefficiency and not corruption.

* Portability fixes for alphaev67-dec-osf5.1; at the moment builds
but does not work because librsync tries to do unaligned accesses.

* Works on sparc64-unknown-linux-gnu (Debian/2.2)

* Improve delta algorithm so that deltas are actually
delta-compressed, rather than faked.