Fix for Bug 371598 - [FastView] Fast views do not always close on Escape
Change to using MouseDown rather than MouseUp...
ModelWork for Bug 378298 - [Split editor] Allow nesting of Sash/Stack in
a Stack
Bug 400042 - Help of Shell is overriden by Eclipse when Workbench starts

Move help system registration to earlier in the startup similar to 3.x
Fix (2) for Bug 371598 - [FastView] Fast views do not always close on
Escape (Activate the part).
Bug 413624 - Fix compiler warnings in org.eclipse.jface.dialogs caused
by moving JFace to Java 1.5

Change-Id: Id41cbdbfeedc2a44cc5e48072a9489a8cf8526fa
Signed-off-by: Hendrik Still <hendrik.still@gammas.de>
Update model.workbench with correct @since tags and API filters.
Bug 411602 - CTRL+Q keyboard shortcut in any dialog closes the workbench
without option to save

Remove the handler and keybinding
Bug 407084 - AbstractEList$BasicIndexOutOfBoundsException when opening a
context menu

Protection on one more add(*).
Fix for Bug 408348 - Activating the minimized shared area does not
activate a part in it
Fix for Bug 409324 - Editors Ping Pong once the Outline View has been
activated