It's debated, from what I can gather.

Here's a url that I hope it ok to post:

http://www.bookrags.com/books/vlttr/PART13.htm

If you read far down in the text, you'll find some explanations of why Jonson both admired and criticized Shakespeare.

The ape could have been Shakespeare during one of Jonson's critical or jealous periods. There's a statement about the accusation of plagiarism.

Good night, sweet prince,
DubDunno