Don't \-escape anything in the index

Document server's security header (recommended) requirements

cinera_player_pre.js: Episode keyboard navigation. Also swap out A for
K, and D for J
cinera_player_pre.js: Handle the case in onRefChanged() in which the
filter_container or filterState is not present
cinera.c: Refetch quotes when processing a set of annotations >60 mins
after the last fetch

Flags:
    -w Force quote cache rebuild

-s flag sets the style / theme
Also some general code clean-up and repo organisation

README.md: Add dependency on curl

Also put the stuff in a new directory called cinera, that contains only
the files needed to get going, with example template files.

Also make hmml_to_html.c error while trying to integrate if
template.html contains the script before the player