Merge pull request #46 from janetriley/master

March recap updates: TAs, sponsors, student background
merge janet's changes
fixes
fixes
typo
credit the lecturers
edits
add full size image selection for mar 2013
initial photo selection
rearranging photos
a little more margin between vertical paired photos
pare down photo selection a little
closing section
fix grammar
smoother sentence
more notes about NERD
delete extraneous sentence
typo
typo
typo