Updates lighthouse to the latest networking spec
- Sync re-write (#496)
- Updates to the latest eth2 networking spec (#495)
- Libp2p updates and improvements
* Add basic block processing benches
* Start reviving state processing benches
* Fix old block builders
* Add optimization for faster pubkey add
* Tidy benches, add another
* Add extra block processing bench
* Start working on faster BLS scheme
* Add partially complete sig verify optimization
* Add .gitignore to state processing
* Add progress on faster signature verification
* Fix SignatureSet for fake_crypto
* Tidy attester slashings sig set
* Tidy bulk signature verifier
* Refactor signature sets to be cleaner
* Start threading SignatureStrategy through code
* Add (empty) test dir
* Move BenchingBlockBuilder
* Add initial block signature verification tests
* Add tests for bulk signature verification
* Start threading SignatureStrategy in block proc.
* Refactor per_block_processing errors
* Use sig set tuples instead of lists of two
* Remove dead code
* Thread VerifySignatures through per_block_processing
* Add bulk signature verification
* Introduce parallel bulk signature verification
* Expand state processing benches
* Fix additional compile errors
* Fix issue where par iter chunks is 0
* Update milagro_bls dep
* Remove debugs, code fragment in beacon chain
* Tidy, add comments to block sig verifier
* Fix various PR comments
* Add block_root option to per_block_processing
* Fix comment in block signature verifier
* Fix comments from PR review
* Remove old comment
* Fix comment
* Implemented more REST API endpoints.
- Added many of the endpoints, which return 501 - Not Implemented
- Created helper function to return a not implemented error
- Created a parse_pubkey function to get a PublicKey from a hex string
- Created a HTTP handler for the validator endpoints
- Started implementing validator/duties endpoint.
* Fleshed out get validator duties.
- Re-implemented the get validator duties function for the REST API
- Added an 'as_hex_string' function to FakePublicKey, beacuse it was missing.
* Fixed small caching/state bug.
* Extended to array of API inputs.
- Created function for getting arrays from GET parameters.
- Extended get validator duties function to support array of validator duties.
* Tidy API to be more consistent with recent decisions
* Addressing Paul's comments.
- Cleaning up function to get list of proposers.
- Removing unnecessary serde annotations
- Clarifying error messages
- Only accept pubkeys if they are '0x' prefixed.
* Fixed formatting with rustfmt.
