Allow None as return value for filters
-rw-r--r-- 1414 COPYING
-rw-r--r-- 3035 ChangeLog
-rw-r--r-- 66 MANIFEST.in
-rw-r--r-- 1633 README
drwxr-xr-x - examples
drwxr-xr-x - lib
-rw-r--r-- 2602 setup.py
-rwxr-xr-x 11877 urlwatch
-rw-r--r-- 2359 urlwatch.1