pcgen-git fails to build on linux

[eNTi]

Hi, following error:

FAILURE: Build failed with an exception.

* Where:
Build file '/tmp/makepkg/pcgen-git/src/pcgen-git/build.gradle' line: 222

* What went wrong:
A problem occurred evaluating root project 'pcgen'.
> Could not resolve all files for configuration ':runtime'.
   > Could not find jep:jep:2.4.1.
     Searched in the following locations:
       - https://jcenter.bintray.com/jep/jep/2.4.1/jep-2.4.1.pom
       - https://repo.maven.apache.org/maven2/jep/jep/2.4.1/jep-2.4.1.pom
       - http://pcgen.sourceforge.net/mvnrepo/jep/jars/ivy-2.4.1.xml
       - http://pc-gen.org/librepo/jep/jep/2.4.1/ivy-2.4.1.xml
       - https://repository.jboss.org/nexus/content/repositories/thirdparty-releases/jep/jep/2.4.1/jep-2.4.1.pom
     Required by:
         project :

I'm not familiar with pcgen's dependencies but I guess it's not to difficult to update the build.gradle file?

[eNTi]

I've created a pull request that fixes the issue: #6113