[Omake] Extra stuff in "Guide" section of manual

[Benjamin Pierce]

> I believe Jason fixed it this morning. Thanks a lot for the  
> suggestion - the new setup indeed feels more intuitive.

You're welcome -- and thank YOU for OMake: I've been hating GNU Make  
for years and despairing of something better ever coming along  
because it is so much work and almost nobody could be trusted to do  
the language design part right, but you guys have really done it!!   
Now I want everybody else to start using it so that I never have to  
deal with GNU Make again.  :-)

(I was pretty sceptical of the "purely functional but with dynamic  
binding" thing at first, but I'm convinced now.  In fact, I wonder if  
there isn't a story to be told about such languages at a more  
abstract level... it's an interesting part of the design space, and  
I'm not aware of very many people having explored it before...)

     - Benjamin