Dim3nsioneer

Results 4 issues of Dim3nsioneer

See https://github.com/Ultimaker/Cura/issues/1023

bug
Tweak At Z

as suggested by @pmsimard on the UMforum (http://umforum.ultimaker.com/index.php?/topic/4270-new-versions-of-cura-plugins-tweakatz-and-retractwhilecombing/page-3#entry85622)

Feature request
Retract While Combing

I like the gCodeViewer very much. IMHO it's the best gcode viewer at the moment. However, it would be nice if it would recognise G10/G11 commands as in the UltiGCode...

Bugfix / allows for tweaks on first layer