helios/composite*.xml should point to relocated m2e-wtp 0.13.1 release in http://download.jboss.org/jbosstools/updates/m2e-extensions/m2eclipse-wtp/0.13.1/ (JBIDE-11677)
indigo/SR2/composite*.xml should point to relocated m2e-apt 1.0.0-2012-06-05_16-15-59-H16 release in http://download.jboss.org/jbosstools/updates/m2e-extensions/m2e-apt/1.0.0-2012-06-05_16-15-59-H16/ (JBIDE-11677)
improve .gitignore file