Converted line endings in css files.
Display messages on top of the page.
Added overview of groups.
Updated group template.
Update brackets when place is set.
Updated default categories.
Css cleanup.
Fixed a crash when category had only 2 players.
Use local times.
Category age limits now behave as python's range.

(low bound is included, but high bound is not)
Player name might contain unicode characters.
Refactored templates.
Optimized query for print_group.
Refactored match display code.
Rearanged urls.
Show tables occupied by groups.
Asign tables to groups.
Release table when group placements are saved.
Allow groups with one player.
Moved group status handling to model.