Fixing typo confusion
Sorting out some confusion
files for lesson 7
added lesson 8 files
fix lesson 7 slide
Merge pull request #23 from bswinnerton/lesson-5-typo-fix

Fixing typo confusion
fix syntax for install command
added lesson 7 hwk
added ruby review slides to lesson 7
fixes
fixes
Lesson 5 answers
Player doesn't have to be instance variable
Refinements and main -> runner
Merge pull request #22 from bswinnerton/lesson-5-answers

Lesson 5 answers