Can I remove "/*!50100 PARTITION BY HASH..." to success with import?
When code starts with something like this

/*!50100


the code following till */ is executed only, when MySQL is installed in a version above 5.0.100

The error here is, that you're mixing table options with partition options. 

From the manual:

CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name
    (create_definition,...)
    [table_options]
    [partition_options]
...

table_option:
    ENGINE [=] engine_name
  | AUTO_INCREMENT [=] value
  | AVG_ROW_LENGTH [=] value
  | [DEFAULT] CHARACTER SET [=] charset_name
...

partition_options:
    PARTITION BY
        { [LINEAR] HASH(expr)
        | [LINEAR] KEY(column_list)
        | RANGE(expr)
        | LIST(expr) }
    [PARTITIONS num]
    [SUBPARTITION BY
        { [LINEAR] HASH(expr)
        | [LINEAR] KEY(column_list) }
      [SUBPARTITIONS num]
    ]
    [(partition_definition [, partition_definition] ...)]


So, try it like this:

CREATE TABLE IF NOT EXISTS `feeditems` (
   `feeditemsID` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `city` varchar(100) DEFAULT NULL,
   `companyID` int(10) unsigned NOT NULL DEFAULT '0',
   `fucID` int(11) NOT NULL DEFAULT '0',
   `feedID` int(10) unsigned NOT NULL DEFAULT '0',
   `title` varchar(255) NOT NULL,
   `description` text NOT NULL,
   `url` text NOT NULL,
   `feeddate` datetime NOT NULL,
   `region` varchar(100) DEFAULT NULL,
   `jobtype` int(11) NOT NULL DEFAULT '0',
   `jobinfomisc` text NOT NULL,
   `joblastdate` varchar(255) NOT NULL,
   `jobcontactname` varchar(255) NOT NULL,
   `jobcontactphone` varchar(255) NOT NULL,
   `jobcontactmail` varchar(255) NOT NULL,
   `jobcontactinfo` text NOT NULL,
   `jobworkers` varchar(255) NOT NULL,
   `jobActive` int(1) NOT NULL DEFAULT '0',
   `logo` varchar(50) DEFAULT NULL,
   `infokus` int(1) NOT NULL DEFAULT '0',
   `deleted` int(1) NOT NULL DEFAULT '0',
   PRIMARY KEY (`feeditemsID`,`feeddate`),
   KEY `deleted` (`deleted`),
   KEY `companyID` (`companyID`),
   KEY `feedID` (`feedID`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1 AUTO_INCREMENT=331451
/*!50100 PARTITION BY HASH ( `feeditemsID` + YEAR(`feeddate`))
PARTITIONS 3 */;