Pass gradient through from the function. (#3312)
Implement gradient for SplineFunction. (#3312)
add gradient and dot to NooseParsedFunctionWrapper (#3312)
start working on FunctionIC gradient test (#3312)
Pass gradients though in FunctionIC. Add tests. (#3312)
regold and enable spline function IC test (#3312)
test only for IC, no solve (#3312)
Merge pull request #3314 from dschwen/icgrad_3312

Pass gradient through from the function.