Vdb 269- fetch logs by hash (#122)

* Upgrade geth from 1.8.15 to 1.8.18

* Update vat_tune to use shared repository methods

* Query blockchain by block hash instead of block number range

* Remove hash validation from repositories

* Fix vow flog integration test

* Update README Travis build sticker

* Update constants formatting per go fmt

* Update EthPublicKeyParser.ParsePublicKey to use discv5.PubkeyID method

* Address PR comments

pkg/transformers/pit_file/debt_ceiling/repository.go

@@ -39,12 +39,6 @@ func (repository PitFileDebtCeilingRepository) Create(headerID int64, models []i
 			return fmt.Errorf("model of type %T, not %T", model, PitFileDebtCeilingModel{})
 		}
 
-		err = shared.ValidateHeaderConsistency(headerID, pitFileDC.Raw, repository.db)
-		if err != nil {
-			tx.Rollback()
-			return err
-		}
-
 		_, err = tx.Exec(
 			`INSERT into maker.pit_file_debt_ceiling (header_id, what, data, log_idx, tx_idx, raw_log)
         VALUES($1, $2, $3::NUMERIC, $4, $5, $6)`,

pkg/transformers/pit_file/ilk/repository.go

@@ -39,12 +39,6 @@ func (repository PitFileIlkRepository) Create(headerID int64, models []interface
 			return fmt.Errorf("model of type %T, not %T", model, PitFileIlkModel{})
 		}
 
-		err = shared.ValidateHeaderConsistency(headerID, pitFileIlk.Raw, repository.db)
-		if err != nil {
-			tx.Rollback()
-			return err
-		}
-
 		_, err = tx.Exec(
 			`INSERT into maker.pit_file_ilk (header_id, ilk, what, data, log_idx, tx_idx, raw_log)
         VALUES($1, $2, $3, $4::NUMERIC, $5, $6, $7)`,