Collective-socialpublisher

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- [add] test buildout.cfg
- [imp] improved tests
- [imp] improved docs
- [add] global config using p.a.registry + controlpanel
- [imp] you can now turn off auto-publish globally

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- [fix] old twitter import
- [imp] 'update' button for saving settings without publishing
- [imp] 'one-shot-text' a flag for changing the text only for the current publishing without overwriting the stored one
- [imp] if cron4plone is present display any available cron schedule
- [imp] improved styles a bit

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- Initial release