Added file util.
Added util for multi-threaded micro-benchmarks.
Added primitive type endoding utils (not complete).
Added convenience utils for memory-mapped files.
Improved logger utils (level configuration).
Added byte-arr comparison test util for convenience.
Buffer size caching and other improvements and fixes.
Fixed channel write bug (must stop when no data is written).
Added statistical test for buffer segment deletion.
Minor readability improvements.
Fixed recycling of closed connections.
Fixed rollback of buffer changes on incomplete reads.
Improved HTTP server headers test.