fix host [^:]+ regex to be [^: ]+ to avoid hostname/message confusion, add test case
more test case for unquoted variant
Merge pull request #21 from floatingatoll/patch-3

fix handling of 'ack host "message message message"'
handle oncall group not found when querying from irc
Merge pull request #23 from floatingatoll/patch-4

handle oncall group not found when querying from irc
Resolved syntax issues as found in Issue #24
Checking if new_oncall contains ERROR and not setting current_oncall if so. [889773]