Conflicts:
	util/src/rlp/rlptraits.rs

Adding doc requests comments

This reverts commit 9f73af3e.

moved src/bin/client.rs -> src/bin/client/main.rs

Conflicts:
	util/src/lib.rs

removed overflowing_shr

fixed wrapping ops on latest nightly

Memory management for cache

Implement signs having low-s.

Conflicts:
	src/service.rs
	src/views.rs

Closes #159

Closes #181

Closes #135

Introduce sha3 crate and use it in ethash