[fix] Convert strings to numbers if possible in `.createServer`

Fixes #321
[dist] Bump version to 0.8.5
http-proxy: 304 responses should emit 'end' too
Merge pull request #337 from indutny/feature-304-end

http-proxy: 304 responses should emit 'end' too
[bench] Remove silly "benchmarks"
[bench] Add a benchmark for websockets throughput
[dist] Update `devDependencies`
[bench] More exact size display
[fix] Handle socket errors
[dist] Bump version to 0.8.6
[fix] Handle errors on request object

Sometimes a request emits `error` event with a `Parse Error`.
[fix] Don't remove `error` listener after response ends

In some rare cases, `error` event might still be emitted after the
response has ended. This is (most likely) a bug in the `node` core.
[dist] Bump version to 0.8.7
added name field to proxy-table config
merged with nodejitsu
merged with nodejitsu