Reorderable list should not be final
Validating textfield doesn't need to take an icon manager, I will fully remove this in a later commit.
Change-Id: I0412f79b951b37d6e72a4fc70d41f0d512731c99
Reviewed-on: http://gerrit.dmdirc.com/2236
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>