Change README markdown type
Adds namespace, rake tools, and test space
Created gem environment
Adds request validation against schema
Adds ErbBuilder to simplify creating SAML from ERB templates
Adds Encoder to encode SAML for transmission
Localises xsd files so that Nokogiri can load one from another
Adds Redirect to simplify creation of saml redirect urls
Adds class methods to invoke processes
Adds files to handle descrepency between gem name and namespace name
Adds Settings object
Adds Nokogiri::XML wrapper SamlTool::SAML
Adds decoder

Also tidies up existing tests
Adds Reader to simplify extracting data from a saml file
Adds to_hash method to Reader instances
Adds tool to simplify creating signatures for SAML documents.
Tidies up encoder test
Allows reader to work with namespaces
Adds response reader
Adds canonicalization_algorithm and reference_uri methods to response_reader