add MANIFEST.in file
use urlsearchrc.default, improve docs

--HG--
rename : .urlsearchrc => .urlsearchrc.default
installation fixes
further install fixes
Added tag 0.3.1 for changeset 9e93a47106af
forget about data_files, write config on first use

--HG--
rename : .urlsearchrc.default => urlsearch/default_config.py
bump to 0.3.2
Added tag 0.3.2 for changeset 95ff481023b2