changed prints to not print out a tuple
Revert "removed test_questionfunctions_2_1 because it was not covered in the chapter"

This reverts commit 2aeec302e09ae1917a14f5ead17b0b9f87dfec79.
added explanation that return ends function execution
refactored assignments into separate files for each week
bug fix
small fixes to PS5
remove Functions/temp.rst
moved each weeks assignments into seperate places
First draft of functions2 chapter
fixed up grammar
understood structure that sentence was refering to
merged my crummy upstream changes
Merge pull request #28 from nickdotreid/pip

Revisions to functions/functions2.rst
minor fixes to functions2
added link in week5 assignments
fixed wording of one answer
Merge branch 'assignments' of https://github.com/nickdotreid/runestone into nickdotreid-assignments
grading logic for non-checkmarks and safety check for no assignments
protected get problems
fixed redirection error by not comparing int to str