Reversed order of events in !events response

Now the events that are happening sooner are list first
(GH #8) Put time in !events response

The time defaults to to the value found in the config.
[acmbot]
default_time = HH:MM # where HH is 00-24

Also put url on the same line
Merge pull request #11 from cameronbwhite/dev

Added time to !events response and changed format