Get rid off the namespace in KDSMETargets.cmake

So we can just link against 'kdstatemachineeditor_view' and friends

Change-Id: I64908cf589ce49bca7b159adeb498e8a21a80f00
Reviewed-on: https://codereview.kdab.com/10920
Reviewed-by: Volker Krause <volker@kdab.com>
updated the "About KDAB" section and added a url to the wiki