Merge pull request #18 from zelgerj/master

added error message rendering feature
Add HttpRequest::getVersion() and HttpResponse::
removeHeader($name) methods
Replace array_key_exists with isset to improve performance
Bugfix missing brace
Merge pull request #19 from wagnert/master

Add HttpRequest::getVersion() and HttpResponse::removeHeader($name) methods
Merge pull request #20 from zelgerj/master

fixed memory consumption problem with shutdown handler
Merge pull request #21 from zelgerj/master

fixed multipart form data parsing
Merge pull request #22 from zelgerj/master

added http multi part feature
added keepalive feature
Merge branch 'master' of https://github.com/techdivision/TechDivision_Http
fixed case if no module dispatches response
fixed coding standards