VOL-1460 Updated core to use voltha-protos instead of local protos
Moved protos to python directory in order to maintain functionaly of containers built there.
Added capability to do local builds of protos
Added instructions on running dep ensure for getting protos.
Updated github.com/golang/protobuf version to v1.3.1

Change-Id: Ia6ef55f07f0d5dcb5b750d7c37b21b71db85bfc4
diff --git a/vendor/github.com/Shopify/sarama/acl_delete_request.go b/vendor/github.com/Shopify/sarama/acl_delete_request.go
index 4133dce..5e94ad7 100644
--- a/vendor/github.com/Shopify/sarama/acl_delete_request.go
+++ b/vendor/github.com/Shopify/sarama/acl_delete_request.go
@@ -1,6 +1,7 @@
 package sarama
 
 type DeleteAclsRequest struct {
+	Version int
 	Filters []*AclFilter
 }
 
@@ -10,6 +11,7 @@
 	}
 
 	for _, filter := range d.Filters {
+		filter.Version = d.Version
 		if err := filter.encode(pe); err != nil {
 			return err
 		}
@@ -19,6 +21,7 @@
 }
 
 func (d *DeleteAclsRequest) decode(pd packetDecoder, version int16) (err error) {
+	d.Version = int(version)
 	n, err := pd.getArrayLength()
 	if err != nil {
 		return err
@@ -27,6 +30,7 @@
 	d.Filters = make([]*AclFilter, n)
 	for i := 0; i < n; i++ {
 		d.Filters[i] = new(AclFilter)
+		d.Filters[i].Version = int(version)
 		if err := d.Filters[i].decode(pd, version); err != nil {
 			return err
 		}
@@ -40,9 +44,14 @@
 }
 
 func (d *DeleteAclsRequest) version() int16 {
-	return 0
+	return int16(d.Version)
 }
 
 func (d *DeleteAclsRequest) requiredVersion() KafkaVersion {
-	return V0_11_0_0
+	switch d.Version {
+	case 1:
+		return V2_0_0_0
+	default:
+		return V0_11_0_0
+	}
 }