Fix the regex parsing for valueless parameters

The @apiPrivate parameter does not take any value, and the
@apiDeprecated parameter has an optional value. However, the regular
expression in Parser.prototype.findElements expects that every parameter
has a value. This may lead to the subsequent apiDoc parameter getting
matched into the valueless parameter, removing it from the final
generated apiDocs.

Switching the regular expression from (.+?) to (.*?) allows the
parameter's value to be optional.

Author: jbylsma

lib/parser.js

@@ -448,7 +448,7 @@ Parser.prototype.findElements = function(block, filename) {
     block = block.replace(/\n/g, '\uffff');
 
     // Elements start with @
-    var elementsRegExp = /(@(\w*)\s?(.+?)(?=\uffff[\s\*]*@|$))/gm;
+    var elementsRegExp = /(@(\w*)\s?(.*?)(?=\uffff[\s\*]*@|$))/gm;
     var matches = elementsRegExp.exec(block);
     while (matches) {
         var element = {