fix in spelling
surface forms rewritten
Flow transient introduced with example. problems:
 * wrong visualisation of initial step
 * I was not able to generate equations from the xml
Special function can be constant: used in elasticity module for lambda and mu
total current for magnetostatics
test for magnetic harmonic nonlinear field converges. But is it correct? Comsol test should be updated. There is a txt file containing nonlinearity missing.
Merge remote-tracking branch 'kus/master'
Merge remote-tracking branch 'mach/master'
small fix in agros2d.py
elmag actuator form updated
agros2d.py -> tools.py