maven dependency on it.xsemantics.runtime

This is required only for allowing the it.xsemantics.dsl to be used as a
Maven jar with the xtext-maven-plugin

Change-Id: If950af777294ead44d535685256f24747305aea3
An example of use of Xsemantics with xtext-maven-plugin

Change-Id: Ie6069449f44903fd87d8d305fcea61ad008022c8
configuration for deploying maven artifacts to sourceforge

Change-Id: I5aa9473638e2762ecb10040e8bb4a61e22b53129