JBIDE-14044 JUnit Tests fail in jbosstools-jst component

Changed logic of wizard initialization.
Performed disposal of dialogs in tearDown().
Disposed calls readAndDispatch().
JBIDE-14094 Update parent pom version for Beta1 (jbosstools-jst)
JBIDE-14095 Full path to the opened file instead of a workspace related path

Test is added.
JBIDE-14031 jst.web.ui.tests are killed by timeout