Put distfiles config in its own config file.
Reorganize catalog files.

--HG--
rename : skel/catseye-alpaca.catalog => skel/catalog/alpaca.catalog
rename : skel/catseye-c.catalog => skel/catalog/c.catalog
rename : skel/catseye-erlang.catalog => skel/catalog/erlang.catalog
rename : skel/catseye-haskell.catalog => skel/catalog/haskell.catalog
rename : skel/catseye-misc.catalog => skel/catalog/misc.catalog
rename : skel/catseye-perl.catalog => skel/catalog/perl.catalog
rename : skel/platform.catalog => skel/catalog/platform.catalog
rename : skel/catseye-python.catalog => skel/catalog/python.catalog
rename : skel/catseye-retro.catalog => skel/catalog/retro.catalog
rename : skel/catseye-scheme.catalog => skel/catalog/scheme.catalog
rename : skel/catseye-wip.catalog => skel/catalog/wip.catalog