Update submodules: defaults (new commits)

defaults:
    4e3f191 Shane Mc Cormack <shanemcc@gmail.com>
            Add some missing inspircd modes

            Gerrit: http://gerrit.dmdirc.com/2539

Change-Id: I860f8e0e24de52cf0a96922644893dac2ca2d3b8

modules/defaults

@@ -1 +1 @@
-Subproject commit 9d4bd0acbd422a2d259df2fcab6d057e1edd43fe
+Subproject commit 4e3f191c2974f322ce9f34b57a92c175e58e6888