Update python dependencies

requirements.txt

@@ -1,15 +1,15 @@
-osmapi==0.8.1
-tzlocal==1.4
-jinja2==2.9.6
-pymongo==3.4.0
-shapely==1.5.17
-requests==2.18.1
-prometheus_client==0.0.19
-flask==0.12.2
+osmapi==1.1.0
+tzlocal==1.5.1
+jinja2==2.10
+pymongo==3.6.1
+shapely==1.6.4.post1
+requests==2.18.4
+prometheus_client==0.2.0
+flask==1.0.2
 flask-restful==0.3.6
-connexion==1.1.10
-elasticsearch==5.4.0
-eventlet==0.19.0
-kombu==4.1.0
+connexion==1.4.2
+elasticsearch==6.2.0
+eventlet==0.23.0
+kombu==4.2.0
 avro==1.8.2
-python-dateutil==2.6.1
+python-dateutil==2.7.3