autogen.sh mini-fix
[base] Process, gai_error: some CLANG/libc++ related fixes.
README updates
[base] Socket: refs #50
[flow] FlowValue: refs #51
[base] Logging: refs #51
[base] SocketSpec: refs #51
[sql] SqlStatement: refs #51
code cleanup
[sql] SqlResult: refs #51
[http] HttpRequest: refs #51
[base] Severity: refs #51
[http] HttpRangeDef: refs #51
[http] HttpMessageProcessor: refs #51
README updates
x0d: refs #50
typofix
[http] implemented an out-of-order mini-handler: echo(string text);

this is to render a basic 200 response body to the client.

handler main {
    echo "Hello, World!" if req.path == '/hello'
    # ...
}
[flow] fixed interpolated string parsing to honor escape sequences (\r \n \t).
[plugins] director: duplicate code cleanup