Merge pull request #285 from rillian/warning

Remove unused variables.
Move Travis IRC notifications to irc.freenode.net#seneca-webvtt
Merge pull request #286 from caitp/move-irc-notifications

Move Travis IRC notifications to irc.freenode.net#seneca-webvtt
Remove dead code.

Fixes -Wunused-function warnings on gcc 4.7.
Remove unused goto targets.

Fixes -Wunused-label warnings on gcc 4.7.