Some spacing changes.
Restructured line breaks in the weight loss tex file.
Standardized labels in the wloss lab.
Revised style of example code in wloss lab.
Fixed undefined references.
More code formatting fixes and some typo fixes.
got rid of dice example and web browser. Rewrote Backpack example.
edited OOP example. Added GUI example.
A first version of the pandas lab
Basic editing pass on the SIR lab.
Reformatted spacing and line breaks in SIR lab.
Clarified time stepping in last problem of SIR lab.
Clarified some redundant sentences and fixed a bad link.
grammar edits
Merge branch 'develop' into OOP
Merge pull request #4 from byuimpactrevisions/DataS

Data s
Merge pull request #5 from byuimpactrevisions/OOP

Oop
Updates made to heat flow lab.
Merge branch 'develop' into heat_flow

Merge with develop
added insertion and deletion for linked lists. grammar.