added my name into usefulgit.txt file
Merge pull request #121 from PCCMathProgramReview2014/alex-work

chapter 1 regulated capital letters on seasons, online, on-campus, full-...
Merge pull request #122 from PCCMathProgramReview2014/alex-work

chapter 2 regulated capital letters on seasons, online, on-campus, full-...
Merge pull request #120 from michele3927/master

added my name into usefulgit.txt file
Merge pull request #123 from PCCMathProgramReview2014/alex-work

chapter 3 regulated capital letters on seasons, online, on-campus, full-...
chapter 4 regulated capital letters on seasons, online, on-campus, full-time, part-time, face-to-face, hyphens