transactions: add version number to journal.backupfiles
The transaction format will be changing a bit over the next releases, so let's
go ahead and add a version number to make backwards compatibility easier. This
whole file format was broken prior to 3.2 (see previous patch), so changing it
now is pretty low risk.
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing:
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.