fixed bug in testResponse.default (instructionSet.R) to unlist(results) when testing answers. "results" is a list so it has to be unlisted for %in% to search it thoroughly.

also fixed minor corruption in Open_Intro/mod1 csv file (figure question 81) - columns were misaligned.
updated output formatting
slight tweak to info() formatting to include space after
more cosmetic stuff
more small cosmetics
updated answer tests for my_name question in mod3 of intro to R
Merge pull request #41 from swirldev/format

updated output formatting
Fixed exit-via-Esc bug.