hgweb: expose repo name on parsedrequest
I'm not a fan of doing this because I want to find a better solution to
the REPO_NAME hack. But this change gets us a few steps closer to
eliminating use of wsgirequest. We can worry about fixing REPO_NAME
once wsgirequest is gone.
Differential Revision: https://phab.mercurial-scm.org/D2784
Our full contribution guidelines are in our wiki, please see:
https://www.mercurial-scm.org/wiki/ContributingChanges
If you just want a checklist to follow, you can go straight to
https://www.mercurial-scm.org/wiki/ContributingChanges#Submission_checklist
If you can't run the entire testsuite for some reason (it can be
difficult on Windows), please at least run `contrib/check-code.py` on
any files you've modified and run `python contrib/check-commit` on any
commits you've made (for example, `python contrib/check-commit
273ce12ad8f1` will report some style violations on a very old commit).