Zepto.js 1.2.0

On top of all the bug fixes found in v1.1.7, this release also brings new features and some slightly backwards-incompatible changes made to ensure better parity with jQuery.

Large changes:

• Eliminate __proto__ use from codebase.
• Enable AMD-compatible module output. Zepto and $ are still exported to global namespace, even in the case of module loader, to keep compatibility with plugins.

New functionality:

• Add $.noop
• Add fn.removeProp()
• Add $.isNumeric()
• Add dataFilter ajax option
• Provide $.data() & $.hasData() in optional "data" module
• Add Firefox OS detection

jQuery compatibility:

• Stop falling back to reading properties in fn.attr()
• fn.attr() now returns undefined for non-existing properties instead of null
• Add document fragment/shadow DOM support