Updates for Xcode 5.0 and clang++

Bumping version to 5.0.5
Fix library order for gcc used in Ubuntu 12.04
pion::http::parser - added HTTP 0.9 “Simple-Request” support (WIP)
change logging severity for a debug message
refactored more HTTP 0.9 logic into response:: update_request_info()
minor typo fixed
Merge remote-tracking branch 'upstream/develop' into develop

Conflicts:
	tests/http_parser_tests.cpp