Added a correctly functioning event_date field to Event posts, and made it work well on all relevant pages/feeds
Fixes #18
Fixed some offending event_dates
Updated the feed, index, and previous pages to use the new event_date variable
Addresses #18

Event index and previous are now using an event_date variable, set by an include

Adding some event specific fields to the Events RSS feed, including an event date

Adding a few elements to the site post RSS feed

FINALLY figured out how to sort, reverse order, and limit a forloop in a sane manner
Added a Gemfile with github-pages, so one can bundle install

Removing the event_date field from _config since Prose doesn't support it

Using set_event_date in Event layout

Putting events without an event_date at the top of events/previous

Added Event Date and Time to homepage listing of posts

Adding Event post support to the general posts RSS

Added a none layout to stop Jekyll warnings about no none layout

Cleaned up the By-line presentation of posts/events on pages and in lists