`contributor.episodes` does not return duplicate episodes any more
add Vimeo to services

fixes #396
fix service categories on module init
fix category/type naming issue
refactor: decrease indentation level; fix spacing
clearify password changelog entry
add Gittip and about.me to services
podlove.contributors: simplify query API

- remove “active” parameter
- instead, add new scope “global-active”, which is the new default
"merge episodes" setting now affects /feed

fixes #290
fixes #395
fix typo
fix jabber url scheme
fix some ADN notices
increase timeout for ADN auth to 10 seconds
forgot to delete a line, belongs to 49e34b5
sort chapters imported from Auphonic by time
fix tracking typo
add ptm params to feed enclosure urls
add tracking settings
add template accessor podcast.setting
respect enable_ptm setting in downloads template