Electricity spot price widget v1.1

The API used has changed the unit string. Update script to match. Also
since the defaults are for Finland, update VAT percentage as it changed
last month.

community/electricity-price-widget.lua

@@ -4,7 +4,7 @@
 -- type = "widget"
 -- foldable = "true"
 -- author = "Hannu Hartikainen <hannu.hartikainen@gmail.com>"
--- version = "1.0"
+-- version = "1.1"
 
 json = require "json"
 prefs = require "prefs"
@@ -28,7 +28,7 @@ function on_load()
 
     -- VAT percentage
     if not prefs.vat_percentage then
-        prefs.vat_percentage = 24
+        prefs.vat_percentage = 25.5
     end
 
     -- change threshold percentages for showing changes in folded format
@@ -88,7 +88,7 @@ function parse_result(result)
     end
 
     price_interval = price_data.unix_seconds[2] - price_data.unix_seconds[1]
-    if price_data.unit == "EUR/MWh" then
+    if price_data.unit == "EUR/MWh" or price_data.unit == "EUR / megawatt_hour" then
         price_unit = "c/kWh"
         unit_multiplier = 0.1
     else