* add recovery for initial sync
* add recovery for rpc
* adding to other services
* remaining services and tests
* fix test
* remove changes to rpc
* handle powchain
* handle in powchain
* abstract to shared package
* gazelle
* lint
* remove for operations
* add in more for operations
* travis
* fix lint
* begin using tree hash instead of hash for state and blocks
* replace with ssz
* rem references to vote cache
* replace all instances of state/block hash with root
* goimports
* almost every test in the world fails
* goimports
* all tests pass, tree hash across repo
* first commit, remote att types
* no more agg attestation proto
* regen mock
* only attestations
* proto
* att process
* fix att references
* more tests passing
* use att protos
* complete
* change visibility
* use gogoprotobu
* first commit, remote att types
* no more agg attestation proto
* regen mock
* only attestations
* proto
* att process
* fix att references
* more tests passing
* use att protos
* complete
* Update dependency com_github_deckarep_golang_set to v1 (#1159)
* Update dependency com_github_edsrzf_mmap_go to v1 (#1160)
* Update dependency com_github_go_stack_stack to v1 (#1161)
* Update dependency com_github_rs_cors to v1 (#1162)
* Update dependency in_gopkg_urfave_cli_v1 to v1 (#1163)
* change visibility