config: remove toml
Merge pull request #35 from etcd-team/b-rm-toml

config: remove toml
remove goraft
Merge pull request #36 from etcd-team/b-rm-goraft

remove goraft!
metrics: remove old metrics
remove gorilla and its users
remove go-httpclient
remove toml dep
remove goprotobuf
remove contrib
remove go_version
remove vestigial build script
remove pkg/btrfs
remove pkg/http
remove test.sh
remove go-log
remove osext
server: ignore server in build/tests
remove bench
remove pkg/strings