Added support for bits proxy, where ONOS bits can survive borrow/return cycles.

Change-Id: I0ab9bac26bd88a246925750d26baaab228a37136
diff --git a/tools/test/bin/onos-push-bits-through-proxy b/tools/test/bin/onos-push-bits-through-proxy
index 1ec7107..e060a47 100755
--- a/tools/test/bin/onos-push-bits-through-proxy
+++ b/tools/test/bin/onos-push-bits-through-proxy
@@ -14,7 +14,7 @@
 echo "Pushing to proxy $node..."
 onos-push-bits $node
 
-others=$(env | sort | egrep "OC[0-9]+" | cut -d= -f2 | grep -v $OCT)
+others=$(env | sort | egrep "OC[0-9]+" | cut -d= -f2 | grep -vE "^$OCT\$")
 
 for other in $others; do
     echo "Pushing to $other..."