BBG_resources 0.0.3

Another "pre-alpha" release of the resource management library. This release contains a few bug fixes only and no new features. Having now put the library into use in another project I'm discovering some features I'd certainly like to attempt to add in the future; these include: a) an intelligent means to remove resources from memory that are not in use and/or have a occurrence of use, b) a better (i.e. easier) way to write the handler code for each resource type that the resource manager can process from an XML doc, c) a pluggable memory model - something that would allow me to allocate memory how I want to allocate memory, not how malloc/free want to do it. Perhaps I'll have time to get to these at some point. Perhaps.