Don’t escape '/' characters in keys

Add test for this behaviour
Add support for canonicalising AWS keys

We don’t just need to URL escape them, they need to be Unicode normalised too http://tools.ietf.org/html/rfc3987#section-5.3.2.2
Fix the Unicode strings for Ruby 1.8.7

Can’t use \u{xxxx} :(
Pack takes Unicode characters, not UTF-8 encodings
[cloudsigma|compute] add firewall policies
add mock
adding new models
Merge branch 'master' into fix-aws-escape
[vcloud_director] rename undeploy.rb to match other request files
Merge pull request #2149 from philandstuff/vcloud_director_undeploy

[vcloud_director] rename undeploy.rb to match other request files
Merge pull request #2110 from github/fix-aws-escape

Fix aws escape
Quick doc update with some available EBS properties

It took me a few tries to get the properties right so I figured a quick update to the docs may save some one a few mins in the future.
Merge pull request #2151 from jschneiderhan/patch-1

Quick doc update with some available EBS properties
Merge pull request #2145 from fred-secludit/cloudsigma_fwplicies

CloudSigma Firewall Policies