Update miglayout

Fixes issue 4254

Change-Id: I942553c146edfc4b078433bf2ddc6e93fc41a193
Reviewed-on: http://gerrit.dmdirc.com/1463
Automatic-Compile: Chris Smith <chris@dmdirc.com>
Reviewed-by: Chris Smith <chris@dmdirc.com>

Change-Id: I9ce55688263e8e016046296bd366a4d6936a41f1
Reviewed-on: http://gerrit.dmdirc.com/234
Reviewed-by: Gregory Holmes <greboid@dmdirc.com>
Tested-by: Gregory Holmes <greboid@dmdirc.com>