Updated Better Model Validation section
Merge pull request #175 from gfranko/master

Updated the Better Model Validation section
updated links for Backbone.Marionette to http://marionettejs.com
Merge pull request #176 from derickbailey/marionette-url

updated links for Backbone.Marionette to http://marionettejs.com
framework -> library
Fix example reference at chapter 3

The text was referencing to TodosView example, but actually the render method is inside TodoView.
Merge pull request #580 from bernardogfilho/fix-example-reference

Fix example reference at chapter 3
Update 02-fundamentals.md
Merge pull request #579 from Trott/not-a-framework

framework -> library
Merge pull request #582 from skaterdav85/patch-1

Update 02-fundamentals.md
Merge remote-tracking branch 'upstream/gh-pages' into gh-pages

Conflicts:
	backbone-fundamentals.epub
	backbone-fundamentals.rtf
	index.html
	index.md
Fixed merge issues