[enh] first version of export_in_representatives_format command

representatives/management/commands/export_in_representatives_format.py

+import json
+from representatives.models import Representative
+from django.core.management.base import BaseCommand
+
+class Command(BaseCommand):
+    args = '<poll_id poll_id ...>'
+    help = 'Closes the specified poll for voting'
+
+    def handle(self, *args, **options):
+        result = []
+        for representative in Representative.objects.all():
+            reps = {"id": representative.remote_id}
+
+            result.append(reps)
+
+        print json.dumps(result, indent=4)