Update submodules: util (new commits)

util:
    e60809a Chris Smith <chris@dmdirc.com>
            Add a repository to get the test deps from.

            Tidy up .gitignore.

            Gerrit: http://gerrit.dmdirc.com/3913

Change-Id: I9e7fa8501f9d23dddd12fc20db2e83ca33ad52ed

modules/util

@@ -1 +1 @@
-Subproject commit 4c937524ef11312717f1109e62d86f7f3f8ff144
+Subproject commit e60809a36e917ada814cac1020bb05b2e2f17960