tests/test-diff-newlines.t

bugzilla: add XMLRPC interface.

Add support for access to Bugzilla via the XMLRPC interface.

This requires a single username and password used to log in to Bugzilla,
plus the URL of the Bugzilla installation. Commit messages are added to
bugs as before, but security only permits them to be added as the
username used to log in.

  $ hg init

  $ python -c 'print "confuse str.splitlines\nembedded\rnewline"' > a
  $ hg ci -Ama -d '1 0'
  adding a

  $ echo clean diff >> a
  $ hg ci -mb -d '2 0'

  $ hg diff -r0 -r1
  diff -r 107ba6f817b5 -r 310ce7989cdc a
  --- a/a	Thu Jan 01 00:00:01 1970 +0000
  +++ b/a	Thu Jan 01 00:00:02 1970 +0000
  @@ -1,2 +1,3 @@
   confuse str.splitlines
   embedded\rnewline (esc)
  +clean diff