add link to Walmart Mobile
Merge pull request #1260 from zamiang/push_state_unsupported

Fix #1252 - Backbone history with pushState enabled incorrectly handles urls with query params in browsers that do not support pushState
Merge pull request #1258 from syntacticx/master

Adding Walmart Mobile as an example
shifting the Walmart mobile down a teense.
point to CoffeeScript.org for installation instructions
Merge pull request #1257 from benatkin/patch-1

Use the same type of URL for installation instructions.
Whitespace cleanup for extend Collection.prototype.chain function definitions.
Merge pull request #1264 from gsamokovarov/patch-1

Whitespace cleanup for extend and Collection.prototype.chain
updating linkedin example app
Merge branch 'master' of github.com:documentcloud/backbone
null and undefined are invalid ids.
Update QUnit.

* Use `deepEqual` in place of `same`.
* Expect 0 tests where appropriate.
* Update view test to use #qunit-fixture.
* Remove `QUnit.config.reorder = false;`.
Merge pull request #1274 from braddunbar/null-id

null and undefined are invalid ids.
Merge pull request #1275 from braddunbar/qunit-1.5.0

Update QUnit.
Fix #1282 - "all" callback list is retrieved for each event.
Merge pull request #1283 from braddunbar/retrieve-all

Fix #1282 - "all" callback list is retrieved for each event.
refactor events using array instead of linked-list to improve performance
Avoid throwing when $ is not defined.
Merge pull request #1284 from lifesinger/master

Improve performance using array instead of linked-list to implement Backbone.Events
Tweak events implementation.