Remove FrameInfoListener.

Change-Id: I6c59a6ea441a966ddacc268c880b55fd06705e39
Reviewed-on: http://gerrit.dmdirc.com/3766
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>
Fix awesome null check.

Change-Id: I080aeae07b0c25c499a685010973a4ad9fed1036
Reviewed-on: http://gerrit.dmdirc.com/3773
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Chris Smith <chris@dmdirc.com>