ddr-ecma5 1.2 released

[David]

Today I've released the 1.2 version of ddr-ecma5 library. It contains
plenty of changes in comparison to previous versions. In particular:

1. New Object methods: defineProperty, defineProperties,
getOwnPropertyDescriptor, getOwnPropertyNames
2. Improved Object.keys methods with property descriptors feature and
with support to indexes to String characters in older environments.
3. Improved documentation
4. Additional tests

Version 1.2 is a milestone. It already implements all ECMAScript 5
features which were planned to be implemented in ddr-ecma5. It means
that starting from this point I'm going to focus mostly on performance
and some stability/compatibility tweaks.

I would be happy to hear from you about all kind of potential problems
and your suggestions how to improve the library in the next versions.
Also if you are using ddr-ecma5 in public/commercial projects I would
be happy to know about them. For this reasons I've decided to run this
group.