Add graph evolution lightbox view, remove all other buttons

Remove all buttons over graphs, leave only 2:
- show extended graph
- show graph evolution (new)

Graph evolution simply shows the same target for specific times on "from" param
* -6 hours
* -1 day
* -1 week
* -1 month
* -1 year

Removed no longer used code from dashboard.html and cleaned up indentation mess
PLEASE DON'T USE TABS!!!