Fix broken remote tests.
Send currency to Authorize.net so that it can be used in both CA and UK.
Add partial captures to wirecard gateway
* Added add_amount function to add amount for capture and transaction
* Changed authorize method to use the wirecard preauthorization api
  * Partial captures don't work with 'authorize'
  * Preauthorize allocates funds for the merchant
* Changed capture_authorization action to just capture
  * capture_authorization is an invalid function for partial captures
* Added remote tests and unit tests
  * Also changed the mocked response to reflect changes in api functions
  used
* Changed permitted_transactions to reflect changes
Removed a comment that no longer applied.
Merge branch 'master' of github.com:Shopify/active_merchant into rlb-wirecard_partial_capture
An attempt to fix failing tests on the Ci server caused by whitespace.
Update the CHANGELOG
Merge pull request #571 from Shopify/rlb-wirecard_partial_capture

Capture partial payments for the wirecard payments
Merge pull request #569 from Shopify/authorize-net-can-uk

Add support for Authorize.net in CA and UK
 # symbol needs to be stripped from paflow link description field
A couple minor fixes
Merge pull request #573 from jduff/fix_payflow_link_description_field

 # symbol needs to be stripped from payflow link description field
Add Pin gateway

http://www.pin.net.au/

Closes #565.
Balanced: Added support for on_behalf_of_uri

Balanced Payments offers the ability to associate a merchant with a
transaction on the capture of a previously authorized transaction. The
parameter is called on_behalf_of_uri. The parameter is not echoed back
in their response.

Closes #566.
Litle: Add support for passing an order_source

See orderSource in the Litle XML Reference Guide section 4.151

Closes #572.
Add MerchantWarrior gateway

http://www.merchantwarrior.com/

Closes #574.
Add Fodoj's name to CONTRIBUTORS
Authorize.net: Fix supported_countries

Changed UK to GB so it matches the country list in active_utils.

Closes #576.
Merge branch 'master' of git://github.com/Shopify/active_merchant