Make trusted.gpg world-readable

There is no reason to hide it from anyone, the GPG default is not
appropriate in our case.

weboob/applications/weboobrepos/weboobrepos.py

@@ -129,6 +129,7 @@ class WeboobRepos(ReplApplication):
                 if not os.path.exists(krname):
                     raise Exception('No valid key file found.')
                 kr_mtime = mktime(strptime(str(r.key_update), '%Y%m%d%H%M'))
+                os.chmod(krname, 0644)
                 os.utime(krname, (kr_mtime, kr_mtime))
             else:
                 print 'Keyring is up to date'