Merge pull request #102 from PCCMathProgramReview2014/chris-work

Chris work
Small edits

A few small edits to correct grammar and smoothen things out.
modifications to section 6, including xkcd addition
Merge pull request #103 from challengeaneka/master

modifications to section 6, including xkcd addition
addressed fixthis items in section1 and in the glossary
Merge pull request #104 from PCCMathProgramReview2014/alex-work

addressed fixthis items in section1 and in the glossary
updated ALEKS pilot, fixed bookmark to appendix, added colophon
Merge pull request #105 from challengeaneka/master

updated ALEKS pilot, fixed bookmark to appendix, added colophon
Merge pull request #106 from spoddeck2/master

Small edits