Improvements to the build process

In order to make it easier to know what version of quickfixJ one is running i propose that the jars that are created should have the version of quickfixJ in their name. as in:
quickfixj-core-1.3.1.jar
looks better than
quickfixj-core.jar.

Another improvement i propose is that now that we break up the release jars into core and the fix-version-specific jars, we should also have a all-in-one-jar that contains everything. for deployment situations that dont care about fix versions and want a all-in-one jar they can deploy.

i can make the changes to the build files to implement these but i want to get agreement if this is a good idea or not.