configure sass
remove compiled .css files from the repository

there isn't much point in having them clutter up diffs and commits.
their generation will always be same based on the .scss files.
use a global stylesheet that imports all of the rest

to limit the number of requests and to keep things organised,
main.scss will handle importing of all the other stylesheets.
split style.scss into smaller files

the initial conversion just moved .css files to .scss files but didn't
take advantage of any of SASS's features. Now colors and mixins are
located in their own partials and nested operator and variables are
utilized.
split and convert form.scss
split and convert competition.scss