1) Add alternatives to iterators (wemeetagain)
(SHA: d5530b075c6f7e4b289f9331ba434cd873eea0e2)

2) Merge pull request #63 from ChainSafe/cayman/remove-iterator

Add alternatives to iterators (wemeetagain)
(SHA: e74bee0cc73d6828dc920cb299413da03020525b)

3) v0.3.6 (wemeetagain)
(SHA: b69ce36d9a7b834738a82b4fff367b6188b03cf2)

4) Merge pull request #64 from ChainSafe/cayman/release

v0.3.6 (wemeetagain)
(SHA: 2782f3bf395b7adf8b59d0f0fe45fa09f9a54f84)