Switch zaneb blog to https

Save a redirect.

Change-Id: I04e097dac5af1d21839e898878a35f4d3c899af4

planet.ini

@@ -491,7 +491,7 @@ nick = fbo
 name = Keith Tobin
 nick = ktobin
 
-[http://www.zerobanana.com/feeds/tags/OpenStack]
+[https://www.zerobanana.com/feeds/tags/OpenStack]
 name = Zane Bitter
 face = zaneb.jpg
 nick = zaneb