minor changes to seeds

Signed-off-by: Zeljko <zeljko@zwr.fi>
use puma by default

Better than Webrick. So says Ari.

Signed-off-by: Zeljko <zeljko@zwr.fi>
more users

Picked users from all 'past' races.

Signed-off-by: Zeljko <zeljko@zwr.fi>
more work on event seeds

This is work in progress.

Signed-off-by: Zeljko <zeljko@zwr.fi>
rails g scaffold event_pages

These are just simple pages that contain some text and can be
displayed as tabs. We should make it so that it can be
markdown (freely editable) or HTML (not editable, but for
instance for facebook/twitter feed or something like that.

Signed-off-by: Zeljko <zeljko@zwr.fi>
seed past events

Finally managed to seed 3 past events (Jami event is still
waiting to become past in a week). This includes minimal seeds:

    rake db:seed minimal=yes

or to reset:

    rake db:reset minimal=yes

Minimal seed only seeds roicross (which is smallest past event)
and only users from it, while full seed takes significantly
longer time.

Commit includes some parsers and LibreOffice macros for parsing
seeds.

Signed-off-by: Zeljko <zeljko@zwr.fi>