Merge pull request #48 from jasondavies/master.

Fix multi-backslash escaping

lib/handlebars/vm.js

@@ -646,7 +646,7 @@ Handlebars.JavaScriptCompiler = function() {};
 
     quotedString: function(str) {
       return '"' + str
-        .replace(/\\/, '\\\\')
+        .replace(/\\/g, '\\\\')
         .replace(/"/g, '\\"')
         .replace(/\n/g, '\\n')
         .replace(/\r/g, '\\r') + '"';

spec/qunit_spec.js

@@ -72,7 +72,8 @@ test("newlines", function() {
 test("escaping text", function() {
   shouldCompileTo("Awesome's", {}, "Awesome's", "text is escaped so that it doesn't get caught on single quotes");
   shouldCompileTo("Awesome\\", {}, "Awesome\\", "text is escaped so that the closing quote can't be ignored");
-  shouldCompileTo("Awesome\\ foo", {}, "Awesome\\ foo", "text is escaped so that it doesn't mess up backslashes");
+  shouldCompileTo("Awesome\\\\ foo", {}, "Awesome\\\\ foo", "text is escaped so that it doesn't mess up backslashes");
+  shouldCompileTo("Awesome {{foo}}", {foo: '\\'}, "Awesome \\", "text is escaped so that it doesn't mess up backslashes");
   shouldCompileTo(' " " ', {}, ' " " ', "double quotes never produce invalid javascript");
 });