Fix up the compilation process

lib/handlebars/jison_ext.js

@@ -1,5 +1,6 @@
-if(exports) { var Handlebars = {} }
+var Handlebars = {};
 
+// BEGIN(BROWSER)
 Handlebars.Lexer = function() {};
 
 Handlebars.Lexer.prototype = {
@@ -18,34 +19,34 @@ Handlebars.Lexer.prototype = {
 
   getchar: function(n) {
     n = n || 1;
-    var chars = "", char = "";
+    var chars = "", chr = "";
 
     for(var i=0; i<n; i++) {
-      char = this.input[0];
-      chars += char;
-      this.yytext += char;
+      chr = this.input[0];
+      chars += chr;
+      this.yytext += chr;
       this.yyleng++;
 
-      this.matched += char;
-      this.match += char;
+      this.matched += chr;
+      this.match += chr;
 
-      if(char === "\n") this.yylineno++;
+      if(chr === "\n") this.yylineno++;
 
       this.input = this.input.slice(1);
     }
-    return char;
+    return chr;
   },
 
   readchar: function(n, ignore) {
     n = n || 1;
-    var char;
+    var chr;
 
     for(var i=0; i<n; i++) {
-      char = this.input[i];
-      if(char === "\n") this.yylineno++;
+      chr = this.input[i];
+      if(chr === "\n") this.yylineno++;
 
-      this.matched += char;
-      this.match += char;
+      this.matched += chr;
+      this.match += chr;
       if(ignore) { this.readchars++; }
     }
 
@@ -87,8 +88,7 @@ Handlebars.Visitor.prototype = {
     return this[object.type](object);
   }
 }
+// END(BROWSER)
 
-if(exports) {
-  exports.Lexer = Handlebars.Lexer;
-  exports.Visitor = Handlebars.Visitor;
-}
+exports.Lexer = Handlebars.Lexer;
+exports.Visitor = Handlebars.Visitor;