moved everything into /trunk/ to create the standard svn layout, for use with tools that require this (eg. git-svn). IMPORTANT: do NOT do an `svn up`. instead, re-use your working copy's existing files with `svn switch` (http://svnbook.red-bean.com/en/1.6/svn.ref.svn.c.switch.html).
lists.py: Added and_(), or_()
lists.py: Added mk_seq()
lists.py: is_seq(): Also return true for sets
lists.py: uniqify(): Document that it will work on any iterable, not just lists
lists.py: Added clear()
lists.py: Added uniqify()
Added lists.py