[Configobj-develop] Validate fixes in SVN

[Michael F. <fuz...@vo...>]

Hello all,

The following changes to the validate module are now in SVN:

A couple of documentation bug fixes.

Removed CHANGELOG from module.

Bugfix: we weren't unquoting keyword arguments of length two, so an
empty string didn't work as a default.

Bugfix: Strings no longer pass the 'is_list' check. Additionally, the
list checks always return lists.

Added 'tuple' check and corresponding 'is_tuple' function (which always 
returns a tuple).

All the best,


Michael