Update en.json to use traffic circle for all circles

I haven't updated the 'roundabout exit' instructions here as I'm not sure 'traffic circle' is the best option in this case.

While 'rotary' and 'roundabout' are more precise, 'traffic circle' is more largely understood, at least in US English.

Author: mcwhittemore

languages/translations/en.json

@@ -350,19 +350,19 @@
         "rotary": {
             "default": {
                 "default": {
-                    "default": "Enter the rotary",
-                    "name": "Enter the rotary and exit onto {way_name}",
-                    "destination": "Enter the rotary and exit towards {destination}"
+                    "default": "Enter the traffic circle",
+                    "name": "Enter the traffic circle and exit onto {way_name}",
+                    "destination": "Enter the traffic circle and exit towards {destination}"
                 },
                 "name": {
                     "default": "Enter {rotary_name}",
                     "name": "Enter {rotary_name} and exit onto {way_name}",
                     "destination": "Enter {rotary_name} and exit towards {destination}"
                 },
                 "exit": {
-                    "default": "Enter the rotary and take the {exit_number} exit",
-                    "name": "Enter the rotary and take the {exit_number} exit onto {way_name}",
-                    "destination": "Enter the rotary and take the {exit_number} exit towards {destination}"
+                    "default": "Enter the traffic circle and take the {exit_number} exit",
+                    "name": "Enter the traffic circle and take the {exit_number} exit onto {way_name}",
+                    "destination": "Enter the traffic circle and take the {exit_number} exit towards {destination}"
                 },
                 "name_exit": {
                     "default": "Enter {rotary_name} and take the {exit_number} exit",
@@ -374,14 +374,14 @@
         "roundabout": {
             "default": {
                 "exit": {
-                    "default": "Enter the roundabout and take the {exit_number} exit",
-                    "name": "Enter the roundabout and take the {exit_number} exit onto {way_name}",
-                    "destination": "Enter the roundabout and take the {exit_number} exit towards {destination}"
+                    "default": "Enter the traffic circle and take the {exit_number} exit",
+                    "name": "Enter the traffic circle and take the {exit_number} exit onto {way_name}",
+                    "destination": "Enter the traffic circle and take the {exit_number} exit towards {destination}"
                 },
                 "default": {
-                    "default": "Enter the roundabout",
-                    "name": "Enter the roundabout and exit onto {way_name}",
-                    "destination": "Enter the roundabout and exit towards {destination}"
+                    "default": "Enter the traffic circle",
+                    "name": "Enter the traffic circle and exit onto {way_name}",
+                    "destination": "Enter the traffic circle and exit towards {destination}"
                 }
             }
         },