JBIDE-16135 EL Content Assist in Java Editor: Make Content Assistant Additional Info window to support URLs.

Content Assist Additional Infos and Tooltips (Hovers) were made to be like in Java Content Assist (Support links, Back/Forward/Open actions, icons and so on)
The new	look works equally in JST editors and in Java Editor (for EL in	Java Strings).
The following JUnit Tests were updated (in another PR) for the changes made to CA Add. Info's and Tooltip's (Hover's) content:
org.jboss.tools.jsf.jsp.ca.test.CAForELJavaAndJSTCompareTest
org.jboss.tools.jsf.jsp.ca.test.CAJsfAddInfoInELMessagesTest
org.jboss.tools.jsf.jsp.hover.ELTooltipTest

Signed-off-by: vrubezhny <vrubezhny@exadel.com>
JBIDE-16176 : use proper stacks archetype id during lookup

Signed-off-by: Fred Bricon <fbricon@gmail.com>
[JBIDE-16161] Tycho tests against Luna have extra dependency

Add missing bundle in common/tests/pom.xml to fix tests
@Ignore failing tests in stacks
Fix stuck build on hudson
JBIDE-16254 common.model.test plugin stuck in Display.sleep() on hudson

Refactored delay to use Display.sleep() and Display.wake() to avoid
scenarios where display sleeps forever
JBIDE-8445 Do not create markers at internal attribute validation by XModel

Errors are saved into internal objects and are available
only for JBoss Tools XML editor.
Add prinln to track how wake up for display is processd on hudson
[JBIDE-15258] Performance tests removed from master

It was dormant for a year and still has compilation errors.
If at some point we decide to create new module with performance
test we can copy sources from jbosstools-4.1.x branch.
JBIDE-16319 Generate new content in New Button wizard for JQM 1.4

Code generation is improved.
JBIDE-16320 NPE when dropping a JQM widget from Palette

Updated PaletteCreator in order to return created part control
[JBIDE-16350] moved DataBindingUtils#addDisposableValueChangeListener from OpenShift to common
Updated parent pom to 4.2.0.Alpha2
JBIDE-16262: Update link to build doc.
JBIDE-16345 General Palette improvements

Improvements for Palette in order not to allow insert elements from Palette to the wrong places.
[JBIDE-16392] dont re-propagate widget->model and possibly override correct model state
JBIDE-16338 JQuery Mobile 1.4 class="ui-*" content assist
initial usage howto
JBIDE-16343 : rename 'Materialize Library' feature into 'Copy Classpath Libraries'

Signed-off-by: Fred Bricon <fbricon@gmail.com>
JBIDE-16343 : tweak warning messages

Signed-off-by: Fred Bricon <fbricon@gmail.com>
JBIDE-16423 Deadlock in AsYouTypeValidationManager