General

Improved build on

Unixware CC
Solaris-64 / Forte 6
gcc 3.0
VisualAge C++ 5.0.2

Popup menus on Unix/X11

Popup menus on X11 since Qt 2.2.4 did not grab the keyboard anymore, but relied on and enforced the application to have 
focus. This worked around an X11 bug where deadkeys did not work while the keyboard was grabbed. This release reverts th
e workaround and introduces a proper fix using the Xkb extension.

Miscellaneous

Many bug fixes including but not limited to potential crashes, memory leaks, possible endless loops, layout and drawing 
errors.  ASSERT macro does no longer cause problems within blocks.