Merge (squashed) of the "CourseWork" branch to master.

Squashed commit of the following:

commit 928933ca56a01bc83c974e34b6cae341a72bd7a7
Author: Daniel Schudel <dan.schudel@gmail.com>

    final work for project

commit d848e4f1c40f852cd0319cc70abc54be3009ffbe
Author: Daniel Schudel <dan.schudel@gmail.com>

    added all requisite files

commit 3e835d152f49e65a282e5997027cf0b6bcea2ff0
Author: Daniel Schudel <dan.schudel@gmail.com>

    snapshot final work

commit de9a467a7941a951a155dde0cee11992c10ccfa9
Author: Daniel Schudel <dan.schudel@gmail.com>

    snapshot work

commit dc92748664a6255dec2450649c703448c61ffc62
Author: Daniel Schudel <dan.schudel@gmail.com>

    added partial work

commit b65eb0dd35698f3b7cf5eaca7dcedb5954ddea02
Author: Daniel Schudel <dan.schudel@gmail.com>

    added knitr.R

commit 8416a47486484dd58156cbc733c581eb7ded25ff
Author: Daniel Schudel <dan.schudel@gmail.com>

    snapshot work

commit 451e5f3febd78d3ffcee0a577bb5b616bb8c55c4
Author: Daniel Schudel <dan.schudel@gmail.com>

    snapshot assignment 1
work out differences between my two R environments
work out differences between my two R environments