Small updates for view.
Refactor event details

Combining edit and show details to one template.
Performer grid for shows

This all the template stuff needed to render the grid of performers.
- hover for bios
- css updates
- template to display grid based on a list of performers
- also did updates to fashion fair, because I found a place I caused a
display bug.

Does NOT have the place where the view passes the list to the template…
waiting on syncing a model update from jpk.
Fixes #159, wrong target on "Getting Here" menu item
Merge branch 'master' into jpkdb
First round of act grid wiring

Working:
- list of performers
- only the accepted ones
- fixes to display of the grid (hover problem, border problem).
- empty = OK
- acts are “visible” if they are accepted - gives us a place to extend
visibility logic.

More testing will ensue.

Known problem = 1 bio appears more than once if it is in more than 1
act.
remove duplicate performers

it’s a bit ugly but it works (see comment in code)
- also fixed a bug in update performer
- also got performer to order by name, which may make Scratch happier.