parenting w.i.p - to be moved to Ernos new system, and from view to controller -- committing just to have what to copy-paste there tomorrow
placeable parent waiting: move from view to scene EC_Placeable, propose a componentReady signal for base Component
parenting wait impl continued, untested still & misses the view part
placeable parenting wait completed for the data model part, works theoretically - to be tested by adding the view part
Merge branch 'master' into parenting
parenting: the view part, using the componentReady signal from scene placeable
Merge branch 'master' into parenting

Conflicts:
	src/WebTundraModel.js
	src/view/ThreeView.js
parenting: attempt to port to current system. is flaky: assumes that placeable component addition is always handled in view before the component fires the componentReady signal
parenting: move the data / scene / ec level parentRef ready signal from a candidate generic Component ready signal to a specific EC_Placeable one
parenting: remove debug prints
Merge pull request #4 from playsign/parenting

Parenting