sql: new payouts and account fields

sql/2017-05-accounts_case_swaptime.sql

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+-- Recent additions to add after db init (.gz)
+-- mysql yaamp -p < file.sql
+
+-- Adds binary type to be case sensitive
+ALTER TABLE accounts CHANGE `username` `username` varchar(128) binary NOT NULL;
+
+-- Remember last coin id swap
+ALTER TABLE accounts ADD `swap_time` INT(10) UNSIGNED NULL AFTER `coinsymbol`;
+

sql/2017-06-payouts_coinid_memo.sql

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+-- Recent additions to add after db init (.gz)
+-- mysql yaamp -p < file.sql
+
+-- Store coin id used on payment, memoid could be used later for xrp
+
+ALTER TABLE `payouts`
+  ADD `idcoin` int(11) NULL AFTER `account_id`,
+  ADD `memoid` varchar(128) NULL AFTER `tx`;
+
+ALTER TABLE `payouts` DROP COLUMN `account_ids`;
+
+ALTER TABLE `payouts`
+  ADD KEY `payouts_coin` (`idcoin`);
+
+ALTER TABLE `payouts` ADD CONSTRAINT fk_payouts_coin FOREIGN KEY (`idcoin`)
+  REFERENCES coins (`id`) ON DELETE CASCADE;
+
+ALTER TABLE `payouts` ADD CONSTRAINT fk_payouts_account FOREIGN KEY (`account_id`)
+  REFERENCES accounts (`id`) ON DELETE CASCADE;
+