switch to separate descriptor mode

keep static data in resort.json
and parsing code in {resort}/index.js
script used to switch to 2 file per resort model

for future reference only:
split - automatically split resort.js file into `json` and `js` parts
replace-require - fixes relative require statements and require in tests
fix bin/generate script to create JSON descriptor
fix invalid og:image property
add `should` for new and updated tests
fix SugarLoaf status for new season
fix Steve's pass status for new season
Merge remote-tracking branch 'origin/fix-og'
Merge remote-tracking branch 'origin/json-descriptors'
Merge remote-tracking branch 'origin/new-season-fixes'