Uberjar XML Entries for Cuneiform cmdline

[mackeprm]

This pull requests adds creation of a fat jar via the maven shade execution plugin (see https://maven.apache.org/plugins/maven-shade-plugin/ ).

It also adds exclusion of the idea project files in the .gitignore file to ensure maven project handling only.

[joergen7]

Very nice. Two more things:

• Is it possible to make the jar appear in the cuneiform-dist module instead of cuneiform-cmdline?
• The log4j.properties (you find this file also in the cuneiform-dist module) needs to be packaged alongside everything else so that logging works.

Currently when I enter:

java -jar cuneiform-cmdline-2.0.2-SNAPSHOT.jar 
log4j:WARN No appenders could be found for logger (de.huberlin.wbi.cuneiform.core.actormodel.Actor).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Also I'll prepare a new target branch for playing around with it, prior to ultimately pushing the change to the master branch. I'll call the target branch uberjar again. (Sorry for deleting the other one).