JBIDE-13815 Fix a remaining ws version mismatch in N&N

The version displayed on the page (in <hX></hX>) didn't match
the version in <title></title> and the file name.
JBDS-2688 : Update New_Features.xml

Added info about JBoss Forge wizards, requested in https://issues.jboss.org/browse/JBDS-2688.