removed "default current_timestamp on update current_timestamp" which…

… is unnecessary and incompatible with mysql 4.0

sql/database.sql

@@ -251,7 +251,7 @@ CREATE TABLE `documents` (
  `mimetype` varchar(255) default NULL,
  `pages` int(11) default NULL,
  `owner` int(11) default NULL,
- `revision` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
+ `revision` timestamp NOT NULL,
  `foreign_id` int(11) default NULL,
  `docdate` date default NULL,
  `list_id` bigint(20) NOT NULL default '0',
@@ -1363,7 +1363,7 @@ CREATE TABLE `immunizations` (
  `vis_date` date default NULL COMMENT 'Date of VIS Statement', 
  `note` text,
  `create_date` datetime default NULL,
- `update_date` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
+ `update_date` timestamp NOT NULL,
  `created_by` bigint(20) default NULL,
  `updated_by` bigint(20) default NULL,
  PRIMARY KEY (`id`)
@@ -2018,7 +2018,7 @@ CREATE TABLE `notes` (
  `note` varchar(255) default NULL,
  `owner` int(11) default NULL,
  `date` datetime default NULL,
- `revision` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
+ `revision` timestamp NOT NULL,
  PRIMARY KEY (`id`),
  KEY `foreign_id` (`owner`),
  KEY `foreign_id_2` (`foreign_id`),
@@ -2456,7 +2456,7 @@ CREATE TABLE `pma_history` (
  `username` varchar(64) default NULL,
  `db` varchar(64) default NULL,
  `table` varchar(64) default NULL,
- `timevalue` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
+ `timevalue` timestamp NOT NULL,
  `sqlquery` text,
  PRIMARY KEY (`id`),
  KEY `username` (`username`,`db`,`table`,`timevalue`)