1) Significant refactoring of the presence API that now allows
roster/buddy lists to be easily used within JFace user interfaces via
ITreeContentProviders. See code in new plugin:
2) IRCLib upgrade from 1.04 to 1.10
3) Use of Apache HttpClient 3.0.1 for implementation of ECF filetranfer
API provider. Inclusion of support for http authentication and proxying.