lz4 and zstd compression via fst#111

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wlandau wants to merge 15 commits intorichfitz:masterfrom

Commits on Jun 23, 2019

Use a couple custom error conditions
wlandau
committed

Commits on Jul 10, 2019

Docs: lz4 and zstd use more memory
wlandau-lilly
committed

Commits on Jul 19, 2019

Merge branch 'master' into 110
wlandau
committed