logging clean-up

- moved most constants to separate file
- sorted and cleaned-up imports
- moved logging setup to separate file

cps/isoLanguages.py

@@ -17,6 +17,9 @@
 #   You should have received a copy of the GNU General Public License
 #   along with this program. If not, see <http://www.gnu.org/licenses/>.
 
+from __future__ import division, print_function, unicode_literals
+
+
 try:
     from iso639 import languages, __version__
     get = languages.get