Fix sqlite quotation bug

lib/dialects/sqlite/query-generator.js

 var Utils = require("../../utils")
 var Utils = require("../../utils")
   , util  = require("util")
   , util  = require("util")
 
 
+var escape = function(str) {
+  if (typeof str == 'string') {
+    return "'" + str.replace(/'/g, "''") + "'";
+  } else {
+    return str;
+  }
+};
+
 module.exports = (function() {
 module.exports = (function() {
   var QueryGenerator = {
   var QueryGenerator = {
     createTableQuery: function(tableName, attributes, options) {
     createTableQuery: function(tableName, attributes, options) {
@@ -42,13 +50,26 @@ module.exports = (function() {
             value = value ? 1 : 0;
             value = value ? 1 : 0;
           }
           }
 
 
-          return Utils.escape((value instanceof Date) ? Utils.toSqlDate(value) : value)
+          return escape((value instanceof Date) ? Utils.toSqlDate(value) : value)
         }).join(",")
         }).join(",")
       }
       }
 
 
       return Utils._.template(query)(replacements)
       return Utils._.template(query)(replacements)
     },
     },
 
 
+    updateQuery: function(tableName, values, where) {
+      var query = "UPDATE <%= table %> SET <%= values %> WHERE <%= where %>"
+      var replacements = {
+        table: Utils.addTicks(tableName),
+        values: Utils._.map(values, function(value, key){
+          return Utils.addTicks(key) + "=" + escape((value instanceof Date) ? Utils.toSqlDate(value) : value)
+        }).join(","),
+        where: MySqlQueryGenerator.getWhereConditions(where)
+      }
+
+      return Utils._.template(query)(replacements)
+    },
+
     deleteQuery: function(tableName, where, options) {
     deleteQuery: function(tableName, where, options) {
       options = options || {}
       options = options || {}