Require mozversion 1.1

The new logging feature is desirable to have.

https://bugzilla.mozilla.org/show_bug.cgi?id=1107032

setup.py

@@ -33,7 +33,7 @@
                           'mozinstall >= 1.4',
                           'mozinfo >= 0.4',
                           'mozlog >= 2.7',
-                          'mozversion >= 0.5',
+                          'mozversion >= 1.1',
                           'requests >= 2.5.0',
                           'cachecontrol >= 0.10.2',
                           'lockfile >= 0.10.2', # used in conjunction with cachecontrol