Change backgrid:done to backgrid:edited in doc
Merge pull request #229 from gbedardsice/documentation-fix

Change backgrid:done to backgrid:edited in doc
Make header optional (like footer) when initializing Grid
Move _direction state variable out of HeaderCell and into Column

I believe this proposal will create more flexibility in
implementing custom cells. I do not assume this commit is complete,
but rather intend to start a dialog about the topic.
Remove requireOptions to make backgrid components less tightly bound to backgrid
Fix #263 pass model to formatter methods
Add commercial support info to readme
SelectCell* now accept optionValues that is a function
Corrected typo: "Componenets" -> "Components"
Merge pull request #301 from mark-otaris/patch-1

Corrected typo: "Componenets" -> "Components"
Add JSDoc for sortType
Merge branch 'gh-pages'
Add column name to header class list for easier column styling
Update backbone-pageable to 1.3.2
Replaces the ZebraStrippingRow example with FocusableRow. #243
Added a little nod to zebra stripes in the styling documentation. Closes #243
Add JSDoc for sortValue
Fix #233, sort has been moved from HeaderCell to Body and delegable from Grid. The sort method now only takes a column and a direction so sorting programmatically is easier
Merge pull request #256 from egeste/column-model-state

Move _direction state variable out of HeaderCell and into Column
Add var