Problem, solutions section for stream processing recipe

Gonna be lots of discussion, I think
More work on discussion
Finished stream-processing recipe

I need to proofread and edit this, but here's a first draft!
Added recipe for using MongoDB with Monger
Add license assignment
Initial draft of red-black trees
Make the prose more imperative
Move and expand DB connection parameters discussion. Some changes after review and testing.
Create 'Implementing custom data structures: Red Black Trees - Part I'
Swap snippet around. It's clearer this way
Small edit
fixed typos
Merge pull request #186 from yogthos/patch-1

fixed typos
Create 'Implementing custom data structures: Red Black Trees - Part II'
Add 'Implementing custom data structures: Red Black Trees' Parts I & II to kitchen-sink.asciidoc
Fix title. Remove stale document
Fix function name formatting
added a markdown recipe
Improved Mongo recipe

* Fixed code blocks
* Added See Also section
* Moved some solution to discussion
Remove a level of directories for unit testing recipe