Add function to check is bc is appplied.
Formatting simplification.
Remove incorrect assertion.
Fix memort error in SystemAssembler.
Simplify some code in SystemAssembler.
More simplification of SystemAssembler.
More SystemAssembler refactoring.
Continue refactoring of SystemAssembler.
Refactor some dofmap pointers in SystemAssembler.
Refactoring for facet-wise assembly in SystemAssembler.
Complete clean-up of cell-wise SystemAssembler code.
Remove re-scaling option from SystemAssembler.
Start refactoing facet-wise assembly in SystemAssembler.
Refactoring in SystemAssembler,
Keep refactoring SystemAssembler.
Avoid unecessary computation in facet-wise SystemAssembler.
Merge branch 'garth/system-assembler-improvements'