[base] Queue: initial draft of a lock free queue.
[base] Queue: added some class documentation/comment.
[base] Queue: drop gcc warning.

(I wondered why we needed that anyway)
[tests] some basic Queue<> vs thread-safe std::deque<> benchmark
[base] Buffer: fixes a minor compiler error, as reported by Clang.
[base] ServerSocket: dead code cleanup
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