o.c.opibuilder.converter: Better translation of graph properties
o.c.opibuilder.converter: Show CSS grid lines if any are selected in EDM

In EDM there are 3 tiers of gridline, in CSS only 1 coarse tier.
It is better to show some grid lines then non at all when EDM is
showing fine ones.
o.c.o.converter: Force parentMacros to be included in RelatedDisplays

- Possible fix to action button macro handling, forcing parent macros to be passed to child opi panel. This supports WRs macro-based path mangling.
Merge remote-tracking branch 'origin/converter-edm'