Special highlights:
- Fixed some license headers.
- Adhered to normal addon structure.
- Removed `exceptions.py` and use `UserError` instead.
- Allow submodules to import some constants from main namespace.
The rest is basically a standard migration.
* [ADD] dead_mans_switch_client, dead_mans_switch_server
* OCA Transbot updated translations from Transifex
* Add demo system parameter and some fixes to README. Fix#314.
* Add timeout to urlopen in order to avoid "freeze" of the cron job
* Use default timeout in get_param directly
* OCA Transbot updated translations from Transifex
* [IMP] count all child processes' resources
* [FIX] only look at parent if workers are configured
* [ADD] tell the server that we don't know a value
* [FIX] pass timeout as keyword argument
* [ADD] hints for coveralls
* OCA Transbot updated translations from Transifex
* OCA Transbot updated translations from Transifex
* OCA Transbot updated translations from Transifex
* OCA Transbot updated translations from Transifex
* OCA Transbot updated translations from Transifex
* OCA Transbot updated translations from Transifex
* [ADD] migrate dead_mans_switch_client
* [IMP] better readme, s/8.0/9.0/