Corporate Management stage 1

This changeset adds a couple of new features to the API, it pulls in all characters on a corp
basis, if a director's API key is available, and updates last login/logoff date/times for each
corp member.

eve_api/evolutions/login-locations.py

@@ -0,0 +1,9 @@
+from django_evolution.mutations import *
+from django.db import models
+
+MUTATIONS = [
+    AddField('EVEPlayerCharacter', 'current_location_id', models.IntegerField, null=True),
+    AddField('EVEPlayerCharacter', 'last_login', models.DateTimeField, null=True),
+    AddField('EVEPlayerCharacter', 'last_logoff', models.DateTimeField, null=True)
+]
+