Some new minimal api tests
Some new minimal api tests

jhamrick/nbgrader,ellisonbg/nbgrader,alope107/nbgrader,EdwardJKim/nbgrader,dementrock/nbgrader,modulexcite/nbgrader,modulexcite/nbgrader,EdwardJKim/nbgrader,dementrock/nbgrader,EdwardJKim/nbgrader,ellisonbg/nbgrader,jdfreder/nbgrader,MatKallada/nbgrader,jupyter/nbgrader,jupyter/nbgrader,EdwardJKim/nbgrader,jhamrick/nbgrader,jhamrick/nbgrader,alope107/nbgrader,ellisonbg/nbgrader,jupyter/nbgrader,jdfreder/nbgrader,jupyter/nbgrader,ellisonbg/nbgrader,MatKallada/nbgrader,jupyter/nbgrader,jhamrick/nbgrader