[VOL-1442]  This commit handles adapter registration end to end.
It introduces an adapter manager to handle all adapter admin
requests.  Some protos have been cleaned as well.

Change-Id: If75d4f7665c03e841d57f5621c30301940d04d93
diff --git a/protos/device.proto b/protos/device.proto
index 0770060..229981e 100644
--- a/protos/device.proto
+++ b/protos/device.proto
@@ -17,7 +17,7 @@
     // Unique name for the device type
     string id = 1;
 
-    // Unique venor id for the device type applicable to ONU
+    // Unique vendor id for the device type applicable to ONU
     // 4 bytes of vendor id from ONU serial number
     string vendor_id = 5;
 
@@ -26,12 +26,9 @@
     // Name of the adapter that handles device type
     string adapter = 2;
 
-    // Capabilitities
-
+    // Capabilities
     bool accepts_bulk_flow_update = 3;
     bool accepts_add_remove_flow_updates = 4;
-    bool accepts_direct_logical_flows_update = 7;
-
 }
 
 // A plurality of device types