Support Utf8 characters in the asynchronous connection http header name/value parser grammar
Updated header parser test case, removed duplicate status code
Merge branch '0.11-devel' of https://github.com/cpp-netlib/cpp-netlib into 0.11-devel
Fixed copyright
Merge pull request #341 from rubu/0.11-devel

Support Utf8 characters in the asynchronous connection header parser