FIX: calling the correct callback on 'add' on Todos

The call to this.addAll for the 'add' event on Todos is redundant and incorrect, this fix corrects it.
fixed broken link
Merge branch 'gh-pages' of git://github.com/addyosmani/backbone-fundamentals into gh-pages
separate example into 2
added space (where missing) for all markdown headers
add line breaks around code in paginator section
fixed url in jquery mobile, navigation code
Merge pull request #177 from christopherscott/formatting-fixes

Formatting fixes
Merge pull request #169 from ricogallo/patch-1

FIX: calling the correct callback on 'add' on Todos
Merge branch 'gh-pages' of git://github.com/addyosmani/backbone-fundamentals into gh-pages
minor typo fix
comment typo fix/improvement
improved basic practical Todo code example and styling
fixed typo / mixed quotes + no ending quote
changed examples to improve flow of the basic practical todo example
fixed flow of the basic practical todo tut
fixed event router invokes on collection and added missig code; added pic for example consistency
Adding review asset.
Adding book review ribbon.
Pushing latest builds with fixes from CSH, Dusan, reviews.