replace "development" app metadata flag with "ttl": * N = ms to cache app metadata * 0 = don't cache * -1 (-N, really) = cache indefinitely
replace "development" app metadata flag with "ttl":
* N = ms to cache app metadata
* 0 = don't cache
* -1 (-N, really) = cache indefinitely

Also took the opportunity to make copying over of metadata properties a little more robust.
threefish/acre,threefish/acre,threefish/acre,gagoel/acre,ericmckean/acre,gagoel/acre,ericmckean/acre,gagoel/acre,ericmckean/acre,ericmckean/acre,gagoel/acre,gagoel/acre,threefish/acre,threefish/acre,threefish/acre,ericmckean/acre,ericmckean/acre,gagoel/acre