* [refac] set default privilege of cache module.

db/update21.1.sql

@@ -80,6 +80,7 @@ CREATE INDEX `idx_object` ON `zt_mark`(`objectType`,`objectID`);
 CREATE INDEX `idx_account` ON `zt_mark`(`account`);
 
 UPDATE `zt_grouppriv` SET `module` = 'cache', `method` = 'setting' WHERE `module` = 'admin' AND `method` = 'cache';
+INSERT INTO `zt_grouppriv` SELECT `group`, 'cache', 'clear' FROM `zt_grouppriv` WHERE `module` = 'cache' AND `method` = 'setting';
 
 UPDATE `zt_pivot` SET `version` = '1';
 INSERT INTO `zt_pivotspec` SELECT `id`,`version`,`driver`,`mode`,`name`,`desc`,`sql`,`fields`,`langs`,`vars`,`objects`,`settings`,`filters`,`createdDate` FROM `zt_pivot`;

db/zentao.sql

@@ -3363,6 +3363,8 @@ REPLACE INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (1,	'build',	'unlinkBug'),
 (1,	'build',	'unlinkStory'),
 (1,	'build',	'view'),
+(1,	'cache',	'clear'),
+(1,	'cache',	'setting'),
 (1,	'caselib',	'batchCreateCase'),
 (1,	'caselib',	'batchEditCase'),
 (1,	'caselib',	'browse'),
@@ -12875,7 +12877,6 @@ REPLACE INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (19, 'user', 'testCase'),
 (19, 'user', 'testTask'),
 (19, 'user', 'todo'),
-(20, 'admin', 'cache'),
 (20, 'admin', 'checkWeak'),
 (20, 'admin', 'index'),
 (20, 'admin', 'register'),
@@ -12897,6 +12898,8 @@ REPLACE INTO `zt_grouppriv` (`group`, `module`, `method`) VALUES
 (20, 'branch', 'manage'),
 (20, 'branch', 'mergeBranch'),
 (20, 'branch', 'sort'),
+(20, 'cache', 'setting'),
+(20, 'cache', 'clear'),
 (20, 'charter', 'browse'),
 (20, 'charter', 'create'),
 (20, 'charter', 'delete'),