Order areas by name in examples

When you click through to the page for a library you see the available
areas in alphabetical order. The examples given for each library should
match this.

app/broadcast_areas/repo.py

@@ -121,7 +121,7 @@ class BroadcastAreasRepository(object):
         ),
         area_count AS (SELECT COUNT(*) AS c FROM areas),
         subset_area_count AS (SELECT c - 4 FROM area_count),
-        description_area_names  AS (SELECT name FROM areas LIMIT 4),
+        description_area_names  AS (SELECT name FROM areas ORDER BY name ASC LIMIT 4),
         description_areas_joined AS (
             SELECT GROUP_CONCAT(name, ", ") FROM description_area_names
         )

tests/app/broadcast_areas/test_broadcast_area.py

@@ -51,17 +51,17 @@ def test_examples():
     assert countries == 'England, Northern Ireland, Scotland, Wales'
 
     regions = broadcast_area_libraries.get('regions-of-england').get_examples()
-    assert regions == 'North East, North West, Yorkshire and The Humber, East Midlands, and 5 more…'
+    assert regions == 'East Midlands, East of England, London, North East, and 5 more…'
 
     counties = broadcast_area_libraries.get(
         'counties-and-unitary-authorities-in-england-and-wales',
     ).get_examples()
-    assert counties == 'Hartlepool, Middlesbrough, Redcar and Cleveland, Stockton-on-Tees, and 170 more…'
+    assert counties == 'Barking and Dagenham, Barnet, Barnsley, Bath and North East Somerset, and 170 more…'
 
     wards = broadcast_area_libraries.get(
         'electoral-wards-of-the-united-kingdom',
     ).get_examples()
-    assert wards == 'Hartlepool, Middlesbrough, Redcar and Cleveland, Stockton-on-Tees, and 375 more…'
+    assert wards == 'Aberdeen City, Aberdeenshire, Adur, Allerdale, and 375 more…'
 
 
 @pytest.mark.parametrize('id', (