Some stuff
Merge pull request #11 from ludvi025/master

Catch Up
moved student info printing/changing into functions
Fixed the Ctrl-C handling that was just added back in.
Reorganized location of signal handler.
Add in progress vs unfinished grading and handling for end of session race condition.
Another grading dawdle-condition fix.
Merge branch 'dev-adam' of github.com:ludvi025/csci1133 into dev-tom
Merge branch 'dev-mina' of github.com:ludvi025/csci1133 into dev-tom

Conflicts:
	grade_homework.py
String literal to correct art.