Moving XPages SBT plugin from Clearcase to GitHub
added com.ibm.sbt.core to build and update site
Merge pull request #1 from LorenzoBoccaccia/integration-of-SBT-plugin

added sbt plugin to build and update site
Merge pull request #169 from padraic-edwards/intergration-of-SBT-plugin

Intergration of sbt plugin, tested as http://sbtintegration.swg.usma.ibm.com:8079/jenkins/job/Testing/15