add support for siphash#10

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joewilliams wants to merge 5 commits intoewdurbin:masterfrom

joewilliams:siphash

Commits on May 5, 2016

add support for siphash
Joe Williams
committed

Commits on May 9, 2016

securerandom is built into stdlib
Joe Williams
committed
not used
Joe Williams
committed

Commits on Jun 8, 2016

change require order?
Joe Williams
committed
bump version
Joe Williams
committed