some editing of section 2. Added pdftooltips so that Fix items show the comment if you hover-over (may not work for all pdf viewers
Merge pull request #49 from PCCMathProgramReview2014/alex-work

some editing of section 2. Added pdftooltips so that Fix items show the ...
more editing; asked Michele to confirm/correct several things. Also, forgot that last commit created aquote environment for attributed quotes
Merge pull request #50 from PCCMathProgramReview2014/alex-work

more editing; asked Michele to confirm/correct several things. Also, for...
more editing
Merge pull request #51 from PCCMathProgramReview2014/alex-work

more editing