[sql mode] Minor fixes

* index.html included codemirror.js twice
* optimize .tableName syntax check

mode/sql/index.html

@@ -5,7 +5,6 @@
         <title>SQL Mode for CodeMirror</title>
         <link rel="stylesheet" href="../../lib/codemirror.css" />
         <script src="../../lib/codemirror.js"></script>
-        <script src="../../lib/codemirror.js"></script>
         <script src="sql.js"></script>
         <style>
 .CodeMirror {
@@ -39,7 +38,7 @@ var init = function() {
         <form>
             <textarea id="code" name="code">-- SQL Mode for CodeMirror
 SELECT SQL_NO_CACHE DISTINCT
-		@var1 AS `val1`, @'val2', @global.'sql_mode',
+		@var1 AS `val1`, @`val2`, @global.'sql_mode',
 		1.1 AS `float_val`, .14 AS `another_float`, 0.09e3 AS `int_with_esp`,
 		0xFA5 AS `hex`, x'fa5' AS `hex2`, 0b101 AS `bin`, b'101' AS `bin2`,
 		DATE '1994-01-01' AS `sql_date`, { T "1994-01-01" } AS `odbc_date`,

mode/sql/sql.js

@@ -55,7 +55,7 @@ CodeMirror.defineMode("sql", function(config, parserConfig) {
         return "number";
       }
       // .table_name (ODBC)
-      if (stream.match(/^[a-zA-Z_]+/) && support.ODBCdotTable == true) {
+      if (support.ODBCdotTable == true && stream.match(/^[a-zA-Z_]+/)) {
         return "variable-2";
       }
     } else if (operatorChars.test(ch)) {