If cookies are disabled, the Statuspage only displays an empty ("Not connected")
This checks if the localStorage API is available and working and only uses it in this case
Also allows better backwards compatibility.
It is not supported by all browsers yet.
Also change load display always to display 2 decimal digits (as it is read
from the kernel with 2 decimal digits).
Fixes#606
Mobile browsers will often show or hide the address bar while scrolling.
This causes resize events which would often reset the signal graphs.
Fixes#662
On the status page statistics section counters for transmitted and received traffic were mixed up. Transmitted traffic was shown as received while received traffic was shown as being transmitted.
Fixes#586
