Update applying-functions-to.asciidoc

Example definition of map-kv via reduce-kv
Update applying-functions-to.asciidoc

Example use of map-kv
Update applying-functions-to.asciidoc

Added require to alias clojure.string
Update applying-functions-to.asciidoc

golf to conj
Update applying-functions-to.asciidoc

simplified example string parsing
Update applying-functions-to.asciidoc

threading
Atlas rendering tweaks
Numerous rendering fixes for Atlas

- Correct heading levels
- Spacing in chapter
- Add source type to errant [source] tag
Merge branch 'master' of https://github.com/clojure-cookbook/clojure-cookbook
Move unix-time conversion recipe to correct location
Add missing file; whoops
added licence agreement
moved orginal reduce-kv above additions
Merge pull request #149 from temacube/patch-1

Update applying-functions-to.asciidoc