Version 0.3.1 of Encore is now available

Version 0.3.1 of Encore is now available.

Noteworthy changes in this version:
- ECLoggingConfigurationFactory added. This class makes initialization of
ECLogging easier by encapsulating the XMLControl setup. See ECLoggingTESTS.m
- macros for assign, retain etc. added
- define "MACOSX" added indicating os x environment
- now building universal framework
- switched to XCode 2.4
- Configurations "Development" and "Deployment" introduced
- package-src.sh script added for the creation of source distribution