Add UV Index support (one-line format)

README.md

@@ -186,6 +186,7 @@ To specify your own custom output format, use the special `%`-notation:
     M    Moon day,
     p    Precipitation (mm/3 hours),
     P    Pressure (hPa),
+    u    UV index (1-12),
 
     D    Dawn*,
     S    Sunrise*,

lib/view/line.py

@@ -167,6 +167,14 @@ def render_pressure(data, query):
         answer += 'hPa'
     return answer
 
+def render_uv_index(data, query):
+    """
+    UV Index (u)
+    """
+
+    answer = data.get('uvIndex', '')
+    return answer
+
 def render_wind(data, query):
     """
     wind (w)
@@ -284,6 +292,7 @@ FORMAT_SYMBOL = {
     'p':    render_precipitation,
     'o':    render_precipitation_chance,
     'P':    render_pressure,
+    "u":    render_uv_index,
     }
 
 FORMAT_SYMBOL_ASTRO = {