build: releaser supports releasing only some artifacts.

scripts/build/publish.sh

@@ -2,6 +2,8 @@
 
 # no relation to publish.go
 
+EXTRA_OPTS="$@"
+
 # Right now we hack this in into the publish script. 
 # Eventually we might want to keep a list of all previous releases somewhere.
 _releaseNoteUrl="https://community.grafana.com/t/release-notes-v5-3-x/10244"
@@ -11,4 +13,4 @@ _whatsNewUrl="http://docs.grafana.org/guides/whats-new-in-v5-3/"
     --wn ${_whatsNewUrl} \
     --rn ${_releaseNoteUrl} \
     --version ${CIRCLE_TAG} \
-    --apikey  ${GRAFANA_COM_API_KEY} 
+    --apikey  ${GRAFANA_COM_API_KEY} ${EXTRA_OPTS}