Merge pull request #97 from PCCMathProgramReview2014/alex-work

Alex work
updated pdf
Merge remote-tracking branch 'upstream/master'

Conflicts:
	MathSACpr2014.pdf
fixed headers in demographic tables, and made them stripy
Merge pull request #98 from challengeaneka/master

worked on appendix
fixed some false apostrophes in an appendix; other minor editing in section 1