Made nsqd into an importable package with the daemon program moved to apps/nsdq
Merge pull request #325 from kzvezdarov/split-nsqd-app

nsqd: make importable
cleanup bench.sh
Merge pull request #326 from mreiferson/bench_fixes_326

cleanup bench.sh
Add basic support for required client cert verify
Add support for status types (require and require-verify) and custom CA
Update CA naming from `client` to `custom`