Update submodules: installer (new commits), plugins (new commits)

installer:
    9e047f9 Shane Mc Cormack <shane@dmdirc.com>
            Check for Java JRE not just a JDK on OS X.

            Fixes-Issue: CLIENT-505
            Gerrit: http://gerrit.dmdirc.com/3396

plugins:
    0e82bac Greg Holmes <greg@dmdirc.com>
            Sort rows even when there aren't rows.

            Fixes-Issue: CLIENT-504
            Gerrit: http://gerrit.dmdirc.com/3393

Change-Id: I7c25de4ca9003a57db5e7999de39e07056f8c61d