Custom Seed script

See merge request !56

A big upgrade: Added custom ranges for different seed data. Seed can randomly generate data given by a set of dates and range of xp along with a set of languages

* Hours are now shown starting at the hour, not wrapping it
* Implemented update functionality for graph
* Tooltips now show time range, hopefully clarifying graph

Fixes #75

Fixes #77

Fixes #78

Fixes #70

Add missing sentence in summary of CC-BY-NC license.

See merge request !55

Should hopefully fix beta autodeploy

Fixes #69

Also remove username from frontpage channel push

Also switch places of machines and other languages in profile