Update snapshot version to 1.3
Add log when pool is shutdown.
Added logging for broken connections.
Readability improvement.
Start of experimental implementation of a concurrent bag.

See http://geekswithblogs.net/simonc/archive/2012/03/26/inside-the-concurrent-collections-concurrentbag.aspx
fix fast statement list overflow inconsistency
Merge commit '4bf148f6d07efb03acc495ff52f1fea9dca649e1' into dev

* commit '4bf148f6d07efb03acc495ff52f1fea9dca649e1':
  fix fast statement list overflow inconsistency
  Update README.md
  Update README.md
Adjust version number in the benchmark script.
New concurrent connection container (moved away from LinkedBlockingQueue and LinkedTransferQueue).
Even more detailed log for broken connections
Add license header and class-level javadoc.
Merged changed from fwbrasil
Cache the hashCode.
Initialize the concurrent bag with an initial size.
Refactored SpecializedConcurrentBag for efficiency, moved to util.
Minor cleanup and javadoc.
Synchronization fixes.
Add a pool state log at timeout failure.
Change default size from 16 to 32, and change growth factor from 4x to 2x.
javadoc.