hgweb: parse and store HTTP request headers
WSGI transmits HTTP request headers as HTTP_* environment variables.
We teach our parser about these and hook up a dict-like data
structure that supports case insensitive header manipulation.
Differential Revision: https://phab.mercurial-scm.org/D2742
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 https://mercurial-scm.org/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.