added section on expanding thinking style
merged remote version with local
changed solo challenge
added section for error messages
clarified instructions
took out pseudocode and refactoring section
reformatted and added notes
removed girl developit slides
fixed broken links for gdi
clarified where blogs saved
fixed broken links for gdi
clarified where blogs saved
moved unit goals above submission
updated week 3 and changed goals
Merge remote-tracking branch 'upstream/master'