Add method ineritance from Entity
Fix bug Traker ID: 3402983
Merge branch 'R38' of git://pythoncad.git.sourceforge.net/gitroot/pythoncad/pythoncad into R38
Add Circle preview
Add preview to the open arc command
Fix for building the windows exe
fix bug ID: 3519839
Add internal property to base geometrical entity
Add property to the document
little change on properties
Add application preferences dialog
Add custom property to all entity and start building the interface
little fix on custom property
more progress on property
Fix problem on property command now it works well
Fix bug on multi selection end command
Change the property system now all property are stored in the db
Simple fix
Fix made by P.M. For windows resizing
Fix sum little bugs on new document creation after the db property
review
Merge branch 'R38' of git://pythoncad.git.sourceforge.net/gitroot/pythoncad/pythoncad into R38

Conflicts:
	PythonCAD/Interface/Command/icommand.py
	PythonCAD/Interface/Entity/base.py
	PythonCAD/Interface/LayerIntf/layerdock.py
	PythonCAD/Interface/LayerIntf/layertreeobject.py
	PythonCAD/Interface/cadwindow.py
	PythonCAD/pythoncad_qt.py
	PythonCad.e4p
	_eric4project/PythonCad.e4q
	_eric4project/PythonCad.e4t