Merge pull request #2 from jcushman/master

Handle transfer-encoding:chunked; misc. replay bugs.
support for url-agnostic dedup, eg loading payload from a different url
than the revisit
Merge branch 'master' of github.com:ikreymer/pywb into work
wsgiref compatibility fixes.

- Manually set env[‘REQUEST_URI’] (which is nonstandard) the same way
it’s set by uwsgi.
- Include HTTP error code reasons in error response. (wsgiref checks
that error code is at least 4 characters, i.e. includes reason)
Merge branch 'master' of https://github.com/jcushman/pywb

Conflicts:
	pywb/utils.py