revisit empty lines; revisit visibility of class members; remove empty destructor; clean up
improve propertyeditor; revert implicit variant interface of enumproperty to explicit one
because:
* variants are not meant to be used like that
* explicit is faster and less error prone (compile time checks)
revisit booleditor and coloreditor
Revise remaining editors
update PropertyModel's class comment
Move property editor paint code to respective classes; cleanup PropertyPainter
add PropertyPainterPlugin
add PropertyEditorPlugin and PropertyPainterPlugin
Adapt PropertyBrowser and PropertyDelegate to new Plugin concept
Update scriptzeug description in README.md #94
Move ColorSchemePrestetsWidget from glwhite to widgetzeug
Add function to enumerate the options of a property
Add method to convert std::array to VariantArray
Support for any type of std::vector to convert to VariantArray or string.
Merge pull request #96 from hpicgs/scriptzeug_description

Update scriptzeug description in README.md #94
Remove affixes from propertypainter code; move to floatingpointeditor owns paint method
Add affixes to (Un)SignedIntegralEditors; add to supported options
Update propertyguiexample
Reduce code of toString method
Small style adjustment