Moved year selector to bottom, together with month selector, and
converted from menu into button row like the months
Company menu:
- select either one company, or "All companies"
- display the selected company name in the button instead of number of
  companies
Fixed layers selector, now toggles on/off each layer correctly
Combined maps and data lists into Static Maps & Data
Merge pull request #4 from Sentido-Labs/day-4

Moved year selector to bottom, together with month selector, and