Crate updates

[ebfull]

No description provided.

[codecov]

Codecov Report

Merging #216 into master will increase coverage by 0.04%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #216      +/-   ##
==========================================
+ Coverage   64.81%   64.86%   +0.04%     
==========================================
  Files          93       93              
  Lines       12052    12066      +14     
==========================================
+ Hits         7812     7827      +15     
+ Misses       4240     4239       -1     

Impacted Files	Coverage Δ
bellman/src/groth16/tests/dummy_engine.rs	0.00% <0.00%> (ø)
group/src/lib.rs	0.00% <ø> (ø)
zcash_history/examples/lib/shared.rs	0.00% <ø> (ø)
zcash_history/src/tree.rs	76.82% <ø> (ø)
zcash_history/src/node_data.rs	70.58% <75.00%> (ø)
librustzcash/src/tests/mmr.rs	100.00% <100.00%> (ø)
librustzcash/src/tests/key_agreement.rs	96.15% <0.00%> (-3.85%)	⬇️
zcash_primitives/src/legacy.rs	97.53% <0.00%> (-1.24%)	⬇️
zcash_primitives/src/zip32.rs	94.40% <0.00%> (+0.01%)	⬆️
zcash_primitives/src/note_encryption.rs	94.72% <0.00%> (+0.04%)	⬆️
... and 3 more

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[str4d]

I checked that all changes from the upstream zkcrypto repos have been pulled into here.