Fixed roporting IP values to Gauss points in each iteration. Added missing values to giveIPvalue().
Reverting previous changes in vtkexportmodule.C
Added generalized evaluate() method to CalculatorFunction.
Renamed some leftover "ltf" to "tf".
Changed FloatArray return value to parameter in Function::evaluate.
Added convenience function to ScalarFunction for use when just time or coordinates are sent as parameters.
Merge branch 'master' of www.oofem.org:/data/git/oofem