Debug: Fix @progstats. Closes GH-491.
Fix supybot-test's option --exclude-plugins for patterns.
travis.yml: Add Filter to the list of excluded plugins.
Conditional: Add --case-insensitive switch to @match.
Debug: Fix @exn. Closes GH-492.
Add test case for scheduler.addPeriodicEvent.
schedule: Add the 'count' argument.
Internet: Fix @whois.
Dict: Fix lookup of some words (looks like dict.org does not follow RFC2229). Closes GH-494.
Seen: Change 'last left the #channelname' to 'last left #channelname' in the English error message.
Merge pull request #495 from Hoaas/testing

Seen: Change 'last left the #channelname' to 'last left #channelname' in the English error message.