[PATCH] merge XS-APItest-KeywordRPN into XS-APItest

XS-APItest-KeywordRPN being a separate module has turned out to be more
hassle than it's worth.  Attached patch merges it into XS-APItest.

-zefram

• [PATCH] merge XS-APItest-KeywordRPN into XS-APItest by Zefram
• Re: [PATCH] merge XS-APItest-KeywordRPN into XS-APItest by Florian Ragwitz