Passing context changes: stokes
Passing regressions tests (except the two that are not an issue right now)
First changes for adding spatially varying viscosity function
Parsed Viscosity class declaration and definition
Getting there with the parsed spatiallyvarying viscosity
Added ParsedViscosity capability
Removed some reduntant functions in parsed_viscosity
Test 1 for parsed viscosity
New test successful, ready for merge with master and variable viscosity tests
PR errors found y Roy
Passing context changes: stokes
Passing regressions tests (except the two that are not an issue right now)
First changes for adding spatially varying viscosity function
Parsed Viscosity class declaration and definition
Getting there with the parsed spatiallyvarying viscosity
Added ParsedViscosity capability
Removed some reduntant functions in parsed_viscosity
Test 1 for parsed viscosity
New test successful, ready for merge with master and variable viscosity tests
PR errors found y Roy