Add C++ timer
Add C++ timer

Change-Id: I48448b4c8f7a516141ced39de06ce63d1fa1c3df
Reviewed-on: http://review.couchbase.org/71354
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Brett Lawson <c8c4369773d7d7226e031f0c4af62e3f38a08510@gmail.com>

mody/libcouchbase,kojiromike/libcouchbase,mody/libcouchbase,kojiromike/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,mody/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase,kojiromike/libcouchbase,couchbase/libcouchbase,kojiromike/libcouchbase,couchbase/libcouchbase,mody/libcouchbase,avsej/libcouchbase,avsej/libcouchbase,couchbase/libcouchbase