Add some dictionaries for idea's spellchecker.

Change-Id: I22c249fd4a9b3885f2dde2a8c10df4b95c483000
Reviewed-on: http://gerrit.dmdirc.com/3703
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Greg Holmes <greg@dmdirc.com>
Update submodules: plugins (new commits)

plugins:
    b5e2088 Chris Smith <chris@dmdirc.com>
            Introduce factories for frames.

            Make the factories implement WindowProvider, and simplify the
            SwingWindowFactory.

            Gerrit: http://gerrit.dmdirc.com/3704

Change-Id: I356d12f23e5f2c32937749e783903114366b0828