* rpc: add parity_allTransactionHashes * Add light_all_transactionst to helpers * Remove extra parentheses * Move light_all_transactions to light_fetch * Remove LightDispatcher import in light_fetch
* rpc: add parity_allTransactionHashes * Add light_all_transactionst to helpers * Remove extra parentheses * Move light_all_transactions to light_fetch * Remove LightDispatcher import in light_fetch