remotes: add support to clone from Mercurial repositories over ssh This commit adds support to clone a remote Mercurial repository over ssh. Interactive password authentication is not implemented, nor is support for pbulic key authentication with passphrases; the repository should be accessible using bare ssh key authentication. For this reason, the ssh options -oBatchMode=yes and -oIdentitiesOnly=yes are added to the ui.ssh setting of Mercurial.

syntax: glob
*.pyc
*.swp
*.sqlite
*.tox
*.egg-info
*.egg

syntax: regexp
^rcextensions
^build
^dist/
^docs/build/
^docs/_build/
^data$
^sql_dumps/
^\.settings$
^\.project$
^\.pydevproject$
^\.coverage$
^kallithea\.db$
^test\.db$
^Kallithea\.egg-info$
^rc.*\.ini$
^fabfile.py
^\.idea$