starting v2
starting v2 of the api
moved measurement intensity util functions to its own file
error was undefined, switched to error
made frontend use v2 api
added polar charts
implemented location lookup with MapQuest
updated to version 2
Merge branch 'v2'

* v2:
  updated to version 2
  implemented location lookup with MapQuest
  added polar charts
  made frontend use v2 api
  error was undefined, switched to error
  moved measurement intensity util functions to its own file
  starting v2 of the api
  starting v2