Rendering fixes
Added intro to ring
Add parallel processing of files recipes.
Include license.
Un-mess-with chapter header levels
Added middleware doc
Adding initial draft of passing-fn-arguments-for-reusable-helpers.
Correcting typos in passing-fn-arguments-for-reusable-helpers.
Adding license agreement file.
Added forms recipe
Added cookies recipe
Added session recipe
Added headers recipe
Added compojure asciidoc and brought it all together
Fixed subtle error.
Merge pull request #151 from miner/master

recipe: Test for a list
Merge branch 'master' of https://github.com/clojure-cookbook/clojure-cookbook
Add cross references in list sections; include test-list recipe in rendering
Merge pull request #152 from ejackson/master

Two recipes for processing files in parallel
Shuffle around @ejackson's recipes