Merge pull request #4 from Benjaminsen/pr/2

Merge to support NFE.

Better Function tests and bug fix that would make inherited construct…

…ors fail

* Removed support for __definegetter__ use Object.defineProperty if you
must.
* Fixed bug where calling constructors on inherited classes without a
local overload would fail.
* Made class initialization slightly faster
* Made Function tests type strong.
* Updated unit tests to test new cases.

Final release of version 0.2.0

* Changed syntax such that new classes are returned on creation and can
be stored in any variable.

* Classes no longer toString to a nice name of themselves. Rather they
toString to what a JavaScript developer would expect.

* Speed has been improved by about 30% for both initialization and
method calls

* Total code size has been reduced by about 20%

* Code can now be compressed with uglify without the compressed code
needing changes to work.

Moving license file to proper folder