improve look of fx.html tests

With 2-column layout, now fits on iPhone screen
fix animate() for elements just added to DOM

Activating CSS transitions for an element just added to the DOM won't
work in either Webkit or Mozilla. To work around this, we used to defer
setting CSS properties with setTimeout (see 272513b).

This solved the problem for Webkit, but not for latest versions of
Firefox. Mozilla seems to need at least 15ms timeout, and even this
value varies.

A better solution for both engines is to trigger "layout". This is done
here by reading `clientLeft` from an element. There are other
properties and methods that trigger layout; see
http://gent.ilcore.com/2011/03/how-not-to-trigger-layout-in-webkit.html
remove unnecessary defers from fx.html

animate() is not async anymore
fix replacing all "%20" with "+" in `$.param()`
Adds detect support for mobile Chrome browser

Adds browser sniffing for chrome on both Android and iOS (different ua strings - https://developers.google.com/chrome/mobile/docs/user-agent)
Merge pull request #596 from elgerlambert/detect-chrome

Adds detect support for mobile Chrome browser
respect `traditional: true` option in $.ajax()

Forward the value of `traditional` option to $.param() in order to
activate flat parameter serialization for certain backends such as
Django.

Closes #484
fix namespaced focus & blur event delegation

Handlers for namespaced focus & blur events weren't attached correctly
in the delegation scenario.

Closes #552
improve delegation for focus/blur and enable unbind

References #597, references #552
support manipulating classnames on SVG elements

Fixes #468
simply wrap any object passed to `$()`

Whitelisting specific DOM types was too much work.

Fixes #502
enable `children()` method for XML documents

Fixes #593
have wrap methods use `children()` for XML compatibility

References #593
don't eval <script> content when "src" is present

A SCRIPT tag can have both a "src" attribute and script content. In
those cases, the remote script is downloaded and the content is ignored.
Zepto should do the same when manually eval'ing SCRIPTs.

Fixes #510
test that <script> with "src" attribute is not evaled

References #510
support "processData" option for $.ajax()

The "processData" option determines whether data should automatically be
serialized to string. Defaults to true.

Closes #595
enable passing `contentType: false` to $.ajax()
add test for `contentType: false`

References #595
silence "layerX/Y" Webkit warnings for events

This means we can't just blindly extend all event properties onto the
event proxy object.
ensure Array's native filter() is always used

Fix conflict with Prototype framework.  Thanks, John, Ted, and Ryan.

Closes #549