optimize all ZST allocations into one single allocation#41
Merged
solson merged 2 commits intorust-lang:masterfrom Jul 1, 2016 
oli-obk:master
Merged
optimize all ZST allocations into one single allocation#41solson merged 2 commits intorust-lang:masterfrom oli-obk:master
solson merged 2 commits intorust-lang:masterfrom 
oli-obk:master