Changes in Brython version 1.4-20131221-111525
==============================================

Site layout
===========
- 2 interactive consoles : one with a navigation bar, the other without (to be included in pages from other sites in an IFRAME)
- add Dirk Krause's demo using the Javascript library three.js

Keywords
========
- support "yield from"

Built-in names, functions, classes
==================================
- add built-in name __debug__
- add attribute __code__ to functions
- implement str.encode(), bytes.decode()
- implement method __or__ for object and str
- first implementation of str.format()

Standard distribution
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- add attributes and methods to sys.py
- add many modules from Python3.3 distribution, unmodified except :
    . add a fake _local class in _thread.py (to avoid a problem in circular imports from threading to _threading_local)
    . pickle is implemented as a clone of json
- add Python modules to replace the built-in modules written in C in CPython3.3 (skeleton generated by scripts/make_skeleton.py)


Brython distribution
====================
- functions related to type() and class construction moved from py_utils.js to new script py_type.js

Features
========
- support of metaclasses
- speed improvements for "for" loops

DOM interface
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- support requestAnimationFrame and cancelAnimationFrame

Bug fixes
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- bugs related to : 
    consecutive string
    character ";" at the end of a line
    unary operator
    str.rpartition()
    syntax foo(x,)
    del
- "import X,Y" failed if X imports Y
- issue 172 : type('')==type('') returned False ! This fix lead to clean up the implementation of many built-in classes
- issue 173 : function namespace

Documentation
=============