mmcgrana/ring forked from ring-clojure/ring

Java's URLEncoder and URLDecoder classes don't follow the URL-encoding
format precisely, instead encoding strings in the slightly different
www-form-urlencoded format. This commit ensures that the url-encode and
url-decode functions work correctly, leaving it up to the form-encode and
form-decode functions to handle data encoded in the www-form-urlencoded
format.

Refactor parameter parsing

Support clj-time Intervals/DateTime for :max-age and :expires

Simplify the equality check against 0

Cloud environments like Heroku tend to have limit how many native threads
you can have per process. Setting a lower default value means people won't
be caught out as easily.

A better place for examples would be linked from the wiki.

A lot of the information in the README can be put in the wiki instead. Now
the README contains a brief overview, installation instructions, and a link
to the API docs and wiki.

The Jetty 7 API docs are not always accurate about what a function does.
The setTrustAll method only applies when there is no keystore or
truststore, rendering it useless for client certificates.

This reverts commit 00bb43e.