Create branch for adding fault friction.
Moved orientation and area routines back to FaultCohesiveKin from FaultCohesive because they are vertex-based and won't be shared with FaultCohesiveDyn.
Worked on integrate residual
Worked on integrate residual
Worked on initialization of FaultCohesiveDyn.
Finished Initial Implementation of Integrate Residual (not tested)
Finished Initial Implementation of Integrate Residual (not tested)
Fixed some bugs in dynamic fault interface.
Added friction directory with friction test case.
Fixed some bugs and added some more debugging output.
Setup some new tests using traction boundary conditions.
Updated TODO for friction.
Worked on doxygen stuff in header files.
More work on adding doxygen stuff to header files.
More work on adding doxygen stuff to header files.
Finished first pass of adding doxygen stuff to header files.
Created simple spring example.
Improved spring example. Added description.
Begin adjusting example to work like code.
Minor cleanup.