Reformulated heat exchanger to avoid warning about unused connector variables. This was needed after removing the cardinality operator in the mixing volume.
Added reference results for MassExchangeDummy
Reformulated mixing volume to remove the cardinality operator.
Removed the cardinality operator.
Removed the cardinality operator.
Fixed package.order
Fixed package.order
Merge pull request #108 from lbl-srg/openmodelica

Merge from openmodelica branch.