Add player cards by date

Previously player cards were tied to a competition. This lets player
cards be created by instead specifying a start date. The stats will be
for all matches by the given player on the given team. This is handy
for the world cup because otherwise there'd be no stats at the start
of the competition.
Tidy the football admin and fix/add tests
Couple of admin player card UI fixes
Remove teams from football admin nav
initial commit of dropcaps and styling
added extra dropcap rules
colour section heading
half fixed drop-caps
correctly fix dropcaps on desktop
fix article body merge conflicts
css formatting
format dropcaps for mobile
merged
Merge remote-tracking branch 'origin/master' into feature-tone-dropcaps
various feature tone border/padding/margin changes
fixed dropcaps for different breakpoints
Merge remote-tracking branch 'origin/feature-tone-dropcaps' into feature-tone-dropcaps
fixed styling and added drop-caps to comment article
various tonal template stuff
Fixing merge conflicts