* ref(sources): refactor source registration and lookup to be lazy.
* fix(fake): don't make changes to passed in config values
* rework without init, tests are missing
* make client provider public
* fix all tests
* change parameter list order, minor improvements
* clientprovider -> clientgenerator, switch naming for interface/struct
* Expose inmemory provider to cli
So we can test `--source fake` without needing to touch AWS/Google.
* Add FakeSource
`external-dns --provider inmemory --source fake --dry-run --once`
OR
`external-dns --provider aws --source fake --fqdn-template <hostname suffix> --dry-run --once`
NB: `--fqdn-template` because otherwise we'll default to creating, e.g.,
`abcd.example.com`, which `--provider aws` filters out because you
likely don't have a Zone for `example.com.` Could also be resolved by
removing the need to use a real provider; the inmemory provider,
perhaps, though it's not entirely hooked up.
Closeskubernetes-incubator/external-dns#22
* Style feedback from Travis CI
* Improve optionality of kubernetes client
* ref(sources): refactor source registration and lookup to be lazy.
* Revert "ref: refactor source registration/lookup to be lazily initialized"
