Don't rely on fs.readdirSync to load schemas
Don't rely on fs.readdirSync to load schemas

Browserify/brfs can't handle this properly as described in https://github.com/substack/brfs/issues/36
and we want to use this module in the lr-sense-followup-app on the
client side (for specs)

eHealthAfrica/data-models,emig/data-models