Add curl wrapper class [SERINA-7]
Obtain polyfill data from Google Directions API [SERINA-7]
Fix typo, set polyfill only if no errors occurred [SERINA-7]
Group Collections in batches of 8 [SERINA-7]

This allows Google Maps API to render N items in a polyfill
Keep allCollections in class var [SERINA-7]
Convert transcode() to work with Node Collections [SERINA-7]

This generates a series of sequential polyfills which can be used to
plot extensive waypoint networks on a map