added gpg plugin to main parent pom
added gpg plugin to main parent pom

git-svn-id: http://lombok-intellij-plugin.googlecode.com/svn/trunk@43 9796b3e4-e716-bb5d-d578-ca2f8dc3330c

GitOrigin-RevId: 4270212cb0a108dd40a9597b8355ff9f4b061846
allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community