Publish using calendar versioning

[piranna]

Use calendar versioning for package version and publish it. We can use year.month.dayhour for version, being dayhour a concatenation of de day and hour values where the data was generated, or altenatively yearmonth.day.hour, with month being zero padded. This has the advantage that would have sorting ambiguity, like 120 not knowing if it's day 1 hour 20, or day 12 hour 0, although this can be fixes with zero padded hours too.