Fixed typos

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Added more imports and properties exposing system objects

Signed-off-by: Stefan Marr <git@stefan-marr.de>
More typos fixed

Signed-off-by: Stefan Marr <git@stefan-marr.de>
#new: belongs on the class side

Signed-off-by: Stefan Marr <git@stefan-marr.de>
Fixed mixed up parameter order, and reference to wrong object

Signed-off-by: Stefan Marr <git@stefan-marr.de>