Change civicrm_batch.type_id to civicrm_batch.mode_id in trunk.civiaccounts

As part of integrated trunk.civiaccounts work on batches with MIH on batches, rename the batch_type_id field in trunk.civiaccounts to to mode_id, and move it from being a field of civicrm_financial_batch to being a field of civicrm_batch.

Remove field from xml/schema/Financial/FinancialBatch.xml.

The following is minimal set of references as a starting point - there will be more where batch and type_id are not on the same line.
$ grep -r -n batch ./* | grep -v '.svn' | grep type_id
./CRM/Batch/Form/Entry.php:81: $this->_profileId = CRM_Core_BAO_Batch::getProfileId( $this->_batchInfo['type_id'] );
./CRM/Core/DAO/Batch.php:148: public $batch_type_id;
./CRM/Core/DAO/Batch.php:242: 'batch_type_id' => array(
./CRM/Core/DAO/Batch.php:243: 'name' => 'batch_type_id',
./CRM/Financial/Form/FinancialBatch.php:153: 'batch_type_id',
./CRM/Financial/Form/FinancialBatch.php:250: $params['batch_type_id'] = CRM_Utils_Array::key( 'Manual batch', $batchType );
./CRM/Financial/Form/Search/Custom/BatchSearch.php:120: 'batch_type_id',
./CRM/Financial/Form/Search/Custom/BatchSearch.php:150: $form->assign( 'elements', array( 'name', 'sort_name', 'batch_type_id', 'close_date', 'open_date', 'payment_instrument_id', 'manual_number_trans', 'manual_total', ) );
./CRM/Financial/Form/Search/Custom/BatchSearch.php:295:LEFT JOIN `civicrm_option_value` as covt ON covt.`value` = cb.`batch_type_id`
./CRM/Financial/Form/Search/Custom/BatchSearch.php:320: if( CRM_Utils_Array::value('batch_type_id', $this->_formValues ) )
./CRM/Financial/Form/Search/Custom/BatchSearch.php:321: $clauses[] = "( cb.batch_type_id LIKE '{$this->_formValues['batch_type_id']}' )";
./sql/civicrm.mysql:1950: `batch_type_id` int unsigned NOT NULL COMMENT 'fk to Batch Type options in civicrm_option_values'
./templates/CRM/Batch/Form/Batch.tpl:41: <tr class="crm-batch-form-block-type_id">
./templates/CRM/Batch/Page/Batch.tpl:47: <td class="crm-batch-type">{$row.type_id}</td>
./templates/CRM/Financial/Form/FinancialBatch.tpl:74: <td class="label">{$form.batch_type_id.label}</td>
./templates/CRM/Financial/Form/FinancialBatch.tpl:75: <td class="html-adjust">{$form.batch_type_id.html}</td>