Added python example
Updating ruby and php examples to include HMAC-SHA1 signature
Merge branch 'master' of https://github.com/assistly/multipass-examples
Added signature
Added a python example that uses the tender_multipass module.
URL encoding multipass and signature in python example
Merge pull request #5 from istruble/tender_multipass

Added a python example that uses the tender_multipass module.
Updating python tender_multipass example for consistency with the base python example
format date to be parsable by desk.com

Internaly MultiPass gem uses simple to_s if Date object is given, however this uses regional default and is sometimes non parsable by Desk.com server, 
giving 500 to our customers.

Irb sample:
irb(main):024:0> Time.now.to_s
=> "2012-08-31 09:55:04 +0300"
you will not get correct date representation requested at  http://dev.desk.com/docs/portal/multipass
If you are using Rails (and/or) somehow allow customers of your Ruby
 application possibility to change their date format things get worse.

Irb example:
irb(main):025:0> require 'time'
irb(main):026:0> Time.now.iso8601
=> "2012-08-31T09:56:29+03:00"

Rails sample:
Time::DATE_FORMATS.merge! :default => "%d/%m/%Y %H:%M"
irb(main):009:0> t = Time.now
=> 2012-08-31 10:02:59 +0300
irb(main):010:0> t.to_s
=> "31/08/2012 10:02"
irb(main):011:0> t.iso8601
=> "2012-08-31T10:02:59+03:00"
Merge pull request #7 from webervin/master

using sample gives 500 to international customers.
Updating C# example to not perform padding, as AesManaged performs PKCS7 padding by default
PHP example now supporting random IV generation
Cleaning up PHP example, removing unnecessary url safe replacement in favor of standard url encoding
Ruby example now using random IV and standard core libraries
Merge pull request #9 from assistly/random-iv

Random IV support and cleanup of PHP/Ruby examples