extended/merged MVC theory part into the book
merge and restructuring of the intro section with simple js mvc implementation - partialy done
merge and restructuring of the intro section with simple js mvc implementation - partialy done
Restructuring and further refining of the MVC intro section and basic MVC implementation
add lumbar chapter
Remove merge conflict comment
Typo correction.
fixed grammar and semantics
fixed grammar
fixed grammar 2
Adding some grammar/flow clean-up of MVC section rewrite by Dusan.
Merge branch 'gh-pages' of https://github.com/addyosmani/backbone-fundamentals into gh-pages

* 'gh-pages' of https://github.com/addyosmani/backbone-fundamentals:
  Minor cody tidy up (white space, added var, redeclaration of PanelAdvanced).
  Placeholder image extension is .png (not .gif).
  Add missing 'of' word.
  minor type in comment line 1616
  Fix code block markup.
  Fix typo in comment url.