== false in EqAirTemp and LowOrder Validation gives Parser Error in OpenModelica

Created by: marcusfuchs

E.g. in EqAirTemp.mo line 40:

if sum(wf_wall) + sum(wf_win) + wf_ground <> 0.00001 == false then

This should be changed to:

if not sum(wf_wall) + sum(wf_win) + wf_ground <> 0.00001 then

@PRemmen can you please check whether that gives the same results?