Update to 1.7.1:

This is an unscheduled bugfix release. 1.7 clients broke support
for pushing bookmarks with HTTP.

    * alias: fall back to normal error handling for ambigious commands (issue2475)
    * bundlerepository: get rid of temporary bundle files (issue2478)
    * bundlerepository: test self.tempfile field, not tempfile module
    * eol: exclude .hgtags file from eol translation (issue2493)
    * log: fix log -rREV FILE when REV isnt the last filerev (issue2492)
    * opener: check hardlink count reporting (issue1866)
    * pushkey: force HTTP POST on push and add tests (issue2489)
    * revlog: fix descendants() if nullrev is in revs
    * subrepo: test & fix svn subrepo removal
    * win32: remove try-catch block of GetModuleFileNameEx (issue2480)

(wiz)