- Handle services from relation as advertised
- Fix some bugs reported by andreas
- Fix problem with string in server options instead of list.
[sidnei] This restores some functionality that got removed by accident during my refactoring and was even documented in README.md, namely, that a service can specify a piece of yaml via relation set services=<> to be used when generating the haproxy stanzas.
- Fix tests
[sidnei] Fix tests