ace:notificationPanel still has widgetVar attribute

r46188: removed widgetvar code and comments from most components that were still using it
r46189: removed unused widgetvar attributes from some demos

The ACE components whose widgetVar attributes and related code got removed are the following: accordion, chart, confirmationDialog, contextMenu, dialog, draggable, droppable, list, listControl, maskedEntry, menu, menuBar, menuButton, notificationPanel, panel, resizable, silderEntry, textAreaEntry, textEntry, and tooltip.

In the cases of the components listed above, the widgetVar attribute was either only in the Meta class or in other classes but was easily removable, without consequences.

Testing Notes: please run all regression and showcase tests for the components listed above.

The components left to do are dataTable, dateTimeEntry and tree, whose classes are still dependent on the widgetVar attribute.

In the case of progressBar, the widgetVar code is easily removable, but its showcase demos make extensive use of the widgetVar.

ICEfaces4 trunk r46192: removed widgetVar attribute from the QA test applications, and ran regressions for the above mentioned ACE components. Ran also the showcase tests for the same components.

r46203: removed widgetvar code and comments from ace:dataTable, ace:dateTimeEntry, ace:tree, and ace:progressBar; removed widgetvar-related code from CoreRenderer and ComponentUtils and also removed remaining widgetvar-related lines from components that were using such code: ace:accordion, ace:draggable, ace:droppable, ace:maskedEntry, ace:menuButton, ace:notificationPanel, ace:resizable, ace:sliderEntry, ace:submitMonitor, ace:tableConfigPanel, ace:textAreaEntry, ace:textEntry, and ace:tooltip

r46204: removed remaining widgetvar-related code from the showcase

Testing notes: please run regression tests on all components affected by these changes, listed above, and report any issues.

r26297: removed remaining widgetvar-related code from the mobi folder and verified no other widgervar code exists anywhere else in the codebase.

ICEfaces4 trunk r46216: ran QA regression tests for all components affected by these changes, no issues found except for the ones already reported.