Initial app and model for LinkedIn integration.

lms/djangoapps/linkedin/management/commands/findusers.py

+from django.core.management.base import BaseCommand, CommandError
+
+class Command(BaseCommand):
+    args = ''
+    help = 'Checks LinkedIn for students that are on LinkedIn'
+
+    def handle(self, *args, **options):
+        print "Hello World!"

lms/djangoapps/linkedin/models.py

+from django.contrib.auth.models import User
+from django.db import models
+
+
+class LinkedIn(models.Model):
+    user = models.OneToOneField(User, primary_key=True)
+    has_linkedin_account = models.NullBooleanField(default=None)

lms/envs/dev.py

@@ -293,3 +293,6 @@ try:
     from .private import *      # pylint: disable=F0401
 except ImportError:
     pass
+
+####################### Linkedin ###########################
+INSTALLED_APPS += ('linkedin',)