IDE-1818 Null exception while run build languages for project no language properties
IDE-1738 Adopt updated eclipse-wtp-xml-search api
Added skipServerTests option
Revert "IDE-1738 Adopt updated eclipse-wtp-xml-search api"

This reverts commit 8d25014c9bd2aa92010b4cca826743b54fa156c8.
IDE-1817 adopted new eclipse-wtp-xml-search with fix
IDE-1813 bug fix and improvement of layout editor
 - fixed empty class name issue
 - made role and id unchangable