Merge pull request #39 from amenk/patch-2

Make updates more robust

Author: cccraig

include/helpers.php

@@ -79,7 +79,7 @@ function create_tag_drop_trigger() {
  * Creates the MugShot face tag table with all data columns required for resizing.
  */
 function create_facetag_table() {
-    $configQuery = 'INSERT INTO ' . CONFIG_TABLE . ' (param,value,comment) VALUES ("MugShot","","MugShot configuration values");';
+    $configQuery = 'REPLACE INTO ' . CONFIG_TABLE . ' (param,value,comment) VALUES ("MugShot","","MugShot configuration values");';
 
     pwg_query($configQuery);
 
@@ -119,4 +119,4 @@ function fetch_sql($sql, $col, $ser) {
     return ($ser) ? json_encode($data) : $data;
   }
 
-  ?>
+  ?>