[NEW] In VtuOutputSolver enable saving and omitting of halo elements in parallel output. New logical keywords introduced 'Skip Halo Elements' and 'Save Halo Elements Only'. 


git-svn-id: svn://svn.code.sf.net/p/elmerfem/code/trunk@6871 04224531-1f84-46d8-96ce-875b9e37dce3
Added some recently added keywords of ResultOutputSolver


git-svn-id: svn://svn.code.sf.net/p/elmerfem/code/trunk@6872 04224531-1f84-46d8-96ce-875b9e37dce3
MagnetoDynamicsCalcFields: Fixing the Joule heating computation so that the effect of the electric conductivity is correctly taken into account and enabling the Joule heating computation also for stationary cases.

git-svn-id: svn://svn.code.sf.net/p/elmerfem/code/trunk@6873 04224531-1f84-46d8-96ce-875b9e37dce3