Added `navigateOnHash` attribute to PjaxBase. This allow Pjax to be configured to fire its `navigate` event when the new URL being navigated to only differs from the current URL by its hash.

Prevent non-HTML5 browsers from doing the pjax tests.

Pjax now handles <a href="#in-page"> links properly, like a browser.

Makes sure the "pjax=1" query param is inserted before any hash.

Added more Pjax unit tests to increase line coverage.

Add an `addPjaxParam` attr to work around browser cache collisions. When true (the default), Pjax will add a "pjax=1" param to the URL to ensure that Pjax responses are cached separately from full page responses.

Add a `url` property to the event facade of 'load' and 'error' events.

Fixed Pjax's unit tests where it checks for Yeti.

Yeti will now ignore the Pjax test which intentionally creates a 404. There doesn't appear to be a way catch these errors, maybe they are thrown from the great depths of the browser's HTTP engine?

Tweaked the Pjax unit tests a bit.

Fixed Pjax tests by ignoring tests which require an HTML5 browser.

Major revamp of PjaxBase and its navigation features. Also API docs. This is pretty much a re-write of PjaxBase to be more aligned with the way we want navigation and URLs to be handled as outlined by this: https://gist.github.com/1386827 PjaxBase is now fully API documented, complete with code-comments. There is also some minor updates to the unit tests.

Major revamp of PjaxBase and its navigation features. Also API docs. This is pretty much a re-write of PjaxBase to be more aligned with the way we want navigation and URLs to be handled as outlined by this: https://gist.github.com/1386827 PjaxBase is now fully API documented, complete with code-comments. There is also some minor updates to the unit tests.

PjaxBase now resolves URLs correctly by using the current root path. Browsers always resolve URLs against the current value of `window.location.pathname` and so should PjaxBase. Updated Pjax tests to restore the URL after completing each test. Manual tests were updated to be correctly select the new contented that was loaded by Pjax.

Rename Controller to Router. Y.Controller is now an alias for Y.Router (ditto the controller module), but this alias will be removed in a future version of YUI.

Update Pjax to deal with Controller changes.

Fix bogus test failure in IE.

Renamed Pjax's `load()` method to `navigate()` which fires `navigate`. Pjax's `load()` method was replaced with a `navigate(url, options)` method and when called will fire the `navigate` event. "Navigate" is a higher-level concept than "load" and more accurately applies to Pjax's role. The Pjax tests have also been updated to reflect this change.

Refactor Pjax into pjax-base, pjax, and pjax-plugin modules. PjaxBase is meant to be a mixin for Controller. Pjax extends Controller and mixes in PjaxBase to provide a usable Pjax implementation. Plugin.Pjax extends Pjax and can be plugged into a Node instance.

Fix Pjax test failures in non-HTML5 browsers.

Split pjax into "pjax" and "pjax-plugin" modules. Y.Pjax has all the functionality, but isn't a Node plugin so it doesn't actually do anything with Ajax responses. Y.Plugin.Pjax injects the response content into the host node and updates the page title.

Make `linkSelector` initOnly and add more tests.

Pjax tests. Mostly there, but still a few more to write.