Headers validation added https://github.com/molnarg/node-http2/issues/60 https://github.com/molnarg/node-http2/issues/61
Merge pull request #63 from todesschaf/master

Update to new version of protocol
gitignore: ignoring WebStorm project folder, and autogenerated coverage report and docs
Releasing version 2.3.0
Reset stream error code changed to PROTOCOL_ERROR
Comments updated
Merge pull request #62 from squirrelfm/draft-9-fixes

HTTP: Headers validation added
HTTP: smaller corrections in _validateHeaders