Add short Cassaforte recipe
Add information about distributed counters
Add information about limit
Add license agreement
Add an introduction section, elaborate on what cassandra is and what it's good for
Moving introduction to discussion
Update passing-fn-arguments-for-reusable-helpers.asciidoc
fix typo
Correct include syntax in web applications chapter.
Fixup fn arguments recipe headers
Initial commit of unit testing recipe
Submit license assignment for Daniel Gregoire (semperos)
Add unit testing recipe to chapter-level file

Since this is the first recipe for this section of the book, add the necessary "include" line for it in the Testing & Profiling chapter-level file.
Add install cassandra section
Merge pull request #143 from ifesdjeen/cassaforte

Add short Cassaforte recipe
Merge branch 'master' of https://github.com/clojure-cookbook/clojure-cookbook
Include cassandra recipe in databases chapter. /cc @ifesdjeen
Adjust header levels for current setup
Merge branch 'semperos-unit-testing'
nothing