0.2.3 (UNRELEASED)

Validator sets can now be used at the top level call to validate and valid?.
Added tested and a doc section around validation pipelining. It was an undocumented invariant. See discussion here.

0.2.2 (16/01/2013)

defvalidator now lets you define validators with arbitrary number of arguments.
All validators are now implemented using defvalidator
New validators:
- member - validates the value is a member of the provided collection
- matches- regex validation (thanks to ghoseb)
Updated most validators' docstrings to something less confusing
Added API documentation using marginalia. See the docs folder or this link.
bouncer now stores the error messages in the qualified keyword :bouncer.core/errors (thanks to ghoseb)

For short, just use an alias:
```
(require '[bouncer.core :as c])
;; then somewhere you want to inspect the errors map

(::c/errors a-map)
```
short-circuit for validators: if a map entry has multiple validators, it stops at the first failure, moving on to the next map entry.
fixed destructuring bug when using Clojure 1.5 (thanks to Gary Johnson for reporting it)
using leiningen profiles to build against Clojure 1.3, 1.4 and 1.5

One step towards composability: new 'defvalidatorset' macro that lets the user encapsulate common validation patterns into reusable units.

Major overhaul of the validation DSL.
Added the defvalidator macro to make defining new validation functions a whole lot simpler.
Moved built-in validators into the bouncer.validators namespace
New validator:
- custom - for ad-hoc validations using arbitrary functions