Remove packages.min.json

[PeterDaveHello]

2017-06-10T22:41:24.947333+00:00 heroku[web.1]: Process running mem=1810M(176.8%)
2017-06-10T22:41:24.947481+00:00 heroku[web.1]: Error R14 (Memory quota exceeded)
2017-06-10T22:41:46.352346+00:00 heroku[web.1]: Process running mem=2364M(230.9%)
2017-06-10T22:41:46.352346+00:00 heroku[web.1]: Error R15 (Memory quota vastly exceeded)

As we write almost everything into a single packages.min.json, the memory cost is very high, maybe should need to rewrite this part, store date library by library, version by version, like how do we store the SRI data.

[xtuc]

Still need to split/rewrite the packages.min.json