fixed a few typo's

blast_ui.install

@@ -57,7 +57,7 @@ function blast_ui_schema(){
         'description' => t('The Regular Expression to use to extract the id from the FASTA header of the BLAST database hit.'),
         'type' => 'text',
       ),
-      'dbxref_db' => array(
+      'dbxref_db_id' => array(
         'description' => t('The Database records from this BLAST Database reference.'),
         'type' => 'int',
       ),

includes/blast_ui.admin.inc

@@ -28,7 +28,7 @@ function blast_ui_admin_form($form, $form_state) {
     '#default_value' => FALSE,
     '#description' => 'When this option is checked, a file upload field will '
       . 'show up on the various BLAST forms under the Database section. This '
-      . 'will allow users tp upload a FASTA file they want to BLAST against '
+      . 'will allow users to upload a FASTA file they want to BLAST against '
       . '(database) as well as a FASTA file containing their query, providing '
       . 'the ultimate in flexibility for your users. However, since this does '
       . 'allow & in fact encourage the upload of large files which are then '