limitless flag on accounts (#96)

controller/store/sql/postgresql/006_v0_3_0_limitless_accounts.sql

@@ -0,0 +1,25 @@
+-- +migrate Up
+
+alter table accounts rename to accounts_old;
+
+create table accounts (
+  id                    serial              primary key,
+  email                 varchar(1024)       not null unique,
+  password              char(128)           not null,
+  token                 varchar(32)         not null unique,
+  limitless             boolean             not null default(false),
+  created_at            timestamp           not null default(current_timestamp),
+  updated_at            timestamp           not null default(current_timestamp),
+
+  constraint chk_email check (email <> ''),
+  constraint chk_password check (password <> ''),
+  constraint chk_token check(token <> '')
+);
+
+insert into accounts(id, email, password, token, created_at, updated_at)
+    select id, email, password, token, created_at, updated_at from accounts_old;
+
+alter table environments drop constraint fk_accounts_id;
+alter table environments add constraint fk_accounts_id foreign key (account_id) references accounts(id);
+
+drop table accounts_old;