Fix meique.lua to work with a newer version.
Fix build when using meique with broken icecc pkg-config.
Add option to hide all text in star view

Support a very simplistic star view configuration in which all nodes and
scheduler are represented by a dot only.
Added option to build using Qt5

Added code modifications needed to build using Qt 5.
The changes not compatible with Qt 4 are isolated by ifdefs.

The default build still Qt 4. In order to build with Qt 5, you need
to run cmake -DQT5=1.

Some modifications, e.g. the ones regarding QGraphicsItemGroup, don't
need ifdefs because the original code was using APIs marked as obsolete
in Qt 4.
Update meique.lua files.