Move contracts to subdirectories#1253

Merged

frangio merged 5 commits intoOpenZeppelin:masterfrom

come-maiz:refactor/1177/out-of-root

Sep 3, 2018

Commits on Aug 29, 2018

Move contracts to subdirectories
Leo Arias
committed
fix import
Leo Arias
committed
move MerkleProof to cryptography
Leo Arias
committed

Commits on Sep 1, 2018

Merge branch 'master' into refactor/1177/out-of-root
Leo Arias
committed

Commits on Sep 3, 2018

Fix import
Leo Arias
committed