Added German Translations (#406)

* Added German Translations

Translated using
https://docs.djangoproject.com/en/1.9/topics/i18n/translation/

Added language drop down menu's for base.html, registration & login
pages

Known issues:
* Translated items in whtracker>create signature remain translated when
posted
* No date/time localisation for Fleet/Structure timers

* Added time locale

Added date/time locale to
*Structure Timers
*Fleet Timers
*Fleet timer form datetimepicker.js

Fixed a bug where the bootstrap label didn't show up when making a
structure timer using the translated form

Missed some base.html translations

* Small translation error

Some obscure SRP strings went unnoticed for context review

* FAT & Fleet-up German Translations

+ a fix in settings.py.example

The only small thing not done is German Date/Time locale for Fleet-up

* Compiled de/django.po

eveonline/views.py

@@ -124,8 +124,8 @@ def main_character_change(request, char_id):
     if EveManager.check_if_character_owned_by_user(char_id, request.user):
         AuthServicesInfoManager.update_main_char_Id(char_id, request.user)
         set_state(request.user)
-        return HttpResponseRedirect("/characters")
-    return HttpResponseRedirect("/characters")
+        return HttpResponseRedirect("/characters/")
+    return HttpResponseRedirect("/characters/")