[MolWorld] Some classes can be Obsolete and not understand messages

[labordep]

This problem apears when checkout a new version of Molecule. To reproduce: update from 1.2.11 to 1.2.12.

Try to test if classes exists or check order of loading IDE package (strange?):

MolWorld>>toolsMenu20ToggleLogsOn:

MolWorld>>toolsMenu30ToggleDynamicContractUpdate:

[labordep]

Same problem with MolWorld>>menu10SystemStatusOn: but this method is rewrited is new molecule versions. Not necessary to considere it, except in the case of a branch of 1.2.11.