Lupa

----------------

* ``LuaRuntime.require()`` and ``LuaRuntime.globals()`` methods

* renamed ``LuaRuntime.run()`` to ``LuaRuntime.execute()``

* support for ``len()``, ``setattr()`` and subscripting of Lua objects

* provide all built-in Lua libraries in ``LuaRuntime``, including
support for library loading

* fixed a thread locking issue

* fix passing Lua objects back into the runtime from Python space

----------------

* Python iteration support for Lua objects (e.g. tables)

* threading fixes

* fix compile warnings

----------------

* explicit encoding options per LuaRuntime instance to decode/encode
strings and Lua code

----------------

* attribute read access on Lua objects, e.g. to read Lua table values
from Python

* str() on Lua objects

* include .hg repository in source downloads

* added missing files to source distribution

----------------

* fix several threading issues

* safely free the GIL when calling into Lua

----------------

* propagate Python exceptions through Lua calls