Apply time zone fix to skyline.js

[earthgecko]

The Panorama UI implemented moment.js and moment-timzone to allow for the
Dygraph rendering of the timeseries to use either a fixed timezone e.g. the
Graphite server's time zone or user the browser time zone as per
#14

This should be ported to the now view at some point, for now pointing it out in
the UI under Known bugs section.