added venn diagram to illustrate inheritance
added extra bonus fun
Merge pull request #125 from brendajin/master

added venn diagram to illustrate inheritance
added venn diagram to illustrate inheritance
added extra bonus fun
local image hosting based on feedback from @pamelafox
removed . from .comparator as a property
fixed object literal being passed into 'is being passed', also changed the 'or' statements to 'and' statements for explanation of extending without obj and with
Merge branch 'master' of github.com:pamelafox/teaching-materials into backbone