Use toplevel CMakeLists.txt
Use toplevel CMakeLists.txt

Change-Id: Icf8436cf3e24b8754133bf8683b633839dc77230
Reviewed-on: http://review.couchbase.org/28729
Reviewed-by: Sergey Avseyev <87f6d5e4fd3644c3c20800cde7fd3ad1569370b3@gmail.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

vmx/platform,vmx/platform,trondn/platform