resolves #1137:
 * set start value (instead of parameter declaration) for TimeTable.table
 * set new default start values (instead of parameter declaration with empty matrix) for combi tables; New default table value also works if smoothness is ContinuousDerivative.

git-svn-id: https://svn.modelica.org/projects/Modelica/trunk@6540 7ce873d0-865f-4ce7-a662-4bb36ea78beb