schemes: prevent one letter schemes from being interpreted as drive letters
To allow one letter schemes, this makes the extension override
url.has_drive_letter() to return False for any schemes defined.
On Windows, the extension will raise util.Abort for any schemes that
conflict with existing drive letters.
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
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.