Manually set service name until #7 is fixed

Author: pglombardo

instana/django.py

@@ -1,16 +1,18 @@
 from __future__ import print_function
 import opentracing as ot
-from instana import tracer
+from instana import tracer, options
 import opentracing.ext.tags as ext
 
+
 DJ_INSTANA_MIDDLEWARE = 'instana.django.InstanaMiddleware'
 
 
 class InstanaMiddleware(object):
     """ Django Middleware to provide request tracing for Instana """
     def __init__(self, get_response):
         self.get_response = get_response
-        ot.global_tracer = tracer.InstanaTracer()
+        opts = options.Options(service="Django")
+        ot.global_tracer = tracer.InstanaTracer(opts)
         self
 
     def __call__(self, request):