due to use of ImplInheritanceHelper2 SfxStyleSheet needs a default ctor, though
its never called. rearrange things a little so we can have an empty ctor
without pulling in a bunch of code which is never executed

To make it easier to keep track of who inserts new dimensions.

The old code would import data axis as hidden field too which makes
no sense & generates unnecessary duplicate field for legitimate data
field.

 * Removed unused SvInplaceEdit

Deleted: SvFileStream::UnlockFile()

Don't try to build libraries that depend on libraries we don't have.

  In ubuntu the GCC_HOME of icecc is in /usr/lib/icecc

Considered replacing it with oslInterlockedCount, but wondered why there is
no osl_getInterlockedCount (similar to glib's g_atomic_int_get)...

Lock the SolarMutex only when necessary.  This is a workaround that just
happens to make the deadlock go away for me.  This being called from pyuno
is wasteful anyway, but apparently there is no way to determine whether
a uno::Reference points at something local to the process.

Yields measurable speedup on load/store of large documents, wonder where
the equivalent patch i committed long time ago to OOo went...

Valgrind complained about uninitialised use in
SwSectionFrm::_CheckClipping (sectfrm.cxx:1111).

Since CWS swlayoutrefactoring the SwRootFrms are destroyed with
SwDoc::IsInDtor not set.  This can cause at least reads of freed
SwRootFrm members when executing the dtors of SwRootFrm base class
SwLayoutFrm calling into SwRootFrm::GetPageAtPos.

Prevent this scenario by:
- moving the implementation of SwRootFrm base class dtors to new
  methods SwFrm::Destroy and SwLayoutFrm::Destroy
- calling SwFrm::Destroy and SwLayoutFrm::Destroy explicitly before
  SwRootFrm members are freed

in scripting / sdext / starmath / stoc / svtools / svx

More robust, handling of the explanations message and link display.