Here's some libraries/utilities I've built for a variety of reasons which you may or may not find useful. Some of it is written from scratch, some of it builds upon the excellent work of others.
Note: all of this code is offered as-is; I offer no guarantees to its quality or usefulness, nor am I offering any implementation support.
However, if you have any general questions or comments about the software, or you've found a bug and want to let me know, that would be appreciated - there's a good chance I'll have a look at fixing them at some point.
Email me here.