Problem, solutions section for stream processing recipe

Gonna be lots of discussion, I think
More work on discussion
Restore example. Some rewording for consistency.
Finished stream-processing recipe

I need to proofread and edit this, but here's a first draft!
added source annotations, link to the library
Merge remote-tracking branch 'upstream/master'
added Selmer templating recipe
Merge branch 'master' of https://github.com/yogthos/clojure-cookbook
cleaned up typos
Added recipe for using MongoDB with Monger
Add recipe for connecting to an SQL database.
Merge remote-tracking branch 'upstream/master'
fixed headings typos
fixed heading tags
Add license assignment
Move @thebusby license assignment to match GitHub name
Correct rendering overflow error
Merge pull request #174 from yogthos/master

added source annotations and link to clj-pdf, Selmer HTML templating recipe
Fix typo in selmer recipe. Fix typo in filenames
Formatting, typo, clean up wording.