RabbitMQ Server versions

v3.3 [Apr 15, 2014]
- fixed startup failure on systems with non-GNU readlink when started from a symlink
- fixed startup failure when inet_dist_listen_min / inet_dist_listen_max set
- prevent unclear error message when config file completely empty.

v2.8 [Apr 13, 2012]
- Dead lettering
- Internal flow control
- Fixes a bug which prevented RAM nodes from being upgraded
- Performance improvements
- Disc space monitoring
- Fixes a serious bug that could cause log files to grow in size infinitely when being rotated