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I'll answer my own question. After reading the documentation further I found the system properties section of http://docs.jboss.org/jbpm/v6.0/userguide/wb.Workbench.html which guided me to the system property "org.uberfire.nio.git.daemon.host". After setting the value of the property to 0.0.0.0 and a system restart you can clone a repository from and to the server host from a remote host.
Hope someone finds this useful.
This did not work for 6.3.0 or 6.4.0 - I had to add it to $JBOSS_HOME/standalone/configuration/standalone-full.xml