Updates to front page.

Change-Id: I759fc11d5c0807b14d31c74b8b10a8089106b863
Merge "Updates to front page."
serverinit: shared camli-cache for multiple publish roots

czninc/kv cannot be shared (locks), so a separate directory
is needed in the multiple publish root case, for the thumbs caches.

Change-Id: I8c07302778e597a2ccf9b3265111a503dd037249
Add 0.7 to the release history

Change-Id: Ieb895939d302c594b35dfd51361c93fe9078a039