* cidr everywhere: check all middleware
Add tests for cidr in only that middleware that already tests for this.
Check the other ones manually (and put reverse in the tests cases
anyway).
Make etcd setup_test run without +build etcd tag - it is not needed
for this test - move rest of the code to lookup_test.go.
Cleanup proxy test a bit and remove TempDir as there is test.TempFile
that does the same thing.
Fixes#909
* coredns package
* Fix test compile
* add hosts middleware
* forgot pointer receiver
* add appropriately modified hostsfile tests from golang repo
* remove test artifacts, separate hostsfile parsing from caching and opening, remove unused metrics references, move middleware up the chain
* refactored the logic for creating records and filtering ip address versions. also got PTR lookups working
* Add README.md. Modify config to be more concise. Add zones list to config. Filter PTR responses based on zones list.
* add Fallthrough and return correct dns response code otherwise
* Simplified Hostsfile to only store hosts in the zones we care about, and by ip version. Added handler tests and improved other tests.
* oops, goimports loaded a package from a different repo
