Use correct velocity BC value for DirectForcing.
Correct path for snake bodyFiles.
Have one Makefile, instead of recursive
Remove useless lib folder
Remove useless obj folder
Remove recursive Makefiles
Minor change
Make unit-tests and simplify into one makefile
Move Doxyfile to doc folder
Add comments to the Makefile
Merge branch 'simplify_makefile'
Edit python scripts to remove FutureWarning.

* Check numpy arrays with "is None" instead of "== None".
Merge branch 'master' into quadratic-interpolation

* Resolved a conflict with tagPoints.inl.