Extracted from r14281 from the younes branch.

Extracted from r14281 from the younes branch.

* BufferView,BufferView::Pimple:
	-  workArea_ removed
* frontends/LyXView:
	- now contains a pointer reference to the current
	  WorkArea instead of the BufferView.
        - workArea(): temporary access method
* frontends/WorkArea:
	- bufferView(): new access methods.

* GuiImplementation: updated due to above changes

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@14329 a592a061-630c-0410-9148-cb99ea01b6c8