Windows-frinedly and Tournament Datepicker stuff

Windows hates %e and %R in strftime so I fixed them in some views (and
Sublime text automatically erased blank spaces at the end of the lines)

Also created inline datepickers on create tournament page with the end
date being limited and automatically selected based on start date
(limited to start date, set automatically to the next Sunady). The
deadline is also 70 days before (so should always fall on a Sunday 2+
months before). Some CSS changes for that, too.

Finally, the SQL for player_payments still had a 'payed' column instead
of a 'paid' column so I changed it.

Also added some stuff to the .gitignore file.