VOL-1448: Added unit test and unit-test-with-coverage support

Change-Id: Ia3c1c3b18b0871b9a796f6eb62e9f2bb14b33ab8
diff --git a/requirements.txt b/requirements.txt
index c666dea..205d524 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,8 +12,8 @@
 fluent-logger==0.6.0
 gevent==1.4.0
 grpc==0.3.post19
-grpcio==1.3.5
-grpcio-tools==1.3.5
+grpcio==1.16.0
+grpcio-tools==1.16.0
 hash_ring==1.3.1
 hexdump==3.3
 jinja2==2.8
@@ -28,7 +28,7 @@
 pcapy==0.11.1
 pep8==1.7.1
 pep8-naming>=0.3.3
-protobuf==3.3.0
+protobuf==3.6.1
 protobuf-to-dict==0.1.0
 pyflakes==2.1.0
 pylint==1.9.4