Change the search order once more in GetAngularFrequncy():

equation (if option element_t pointer given)
material (if option element_t pointer given)
simulation
solver
equation (first active element)
material (first active element)

The last two are somewhat dubious as the equation/material of first active
element might depend on the partition, for example.



git-svn-id: svn://svn.code.sf.net/p/elmerfem/code/trunk@6753 04224531-1f84-46d8-96ce-875b9e37dce3