* adding check for chainHead
* add batch block limit
* adding state root
* removing genesisHash
* removing setBlockForInitialSync
* fixing tests
* remove obsolete check
* changing to check for state initialization
* changing var name
* fix test
* add in tests
* fix all tests
* lint
* reduce test time
* merge fixes
* gazelle
* clean up test
* adding test setup
* add chainstart check to sync querier
* goimports
* goimports
* backend cleanup
* adding getters
* lint
* moving to db
* gazelle
* adding more services setup
* adding more changes
* adding different test setups
* other merge issues
* imports
* fixing keys
* get intial sync able to be set up
* new changes and gazelle
* use simulated p2p
* everything finally works
* unexport fields
* revert changes from merge
* remove mock server
* add documentation
* gazelle
* add another node
* review comments
* fix tests
* syncHealth removed capitalization from an error string
* replaced error variable names in testStatus()
* TestStatus splits into 3 separate tests
* unit test refinement + travis resolved issues
* modified isSynced in querier.go + deleted uncommented code
* removed conditional logic from two unit tests
* TestStatus_ReturnsErrorWhenNotSynced
* moved defer TeardownDB outside setupSyncService
* refactor repo to use protos
* removed block successfully in types
* db package updated
* db, core passing
* chain service done
* no more block instances
* all pass
* deprecate all block protos
* tests pass