Fixed a typo in the google checkout docs

Fixed a typo in the google checkout docs that referenced worldpay instead of google checkout. 
Also added a missing import to the urls.py example.
void referenced undefiend variable 'money' that it didn't need
Merge pull request #48 from kencochrane/patch-1

Fixed a typo in the google checkout docs
Added Ken Cochrane to the list of Contributors. Thanks @kencochrane
Merge pull request #49 from mattmcc/master

void referenced undefined variable 'money' that it didn't need
Added Matt McClanahan to the list of Contributors. Thanks @mattmcc
fix: not compatible with decimal
Handle the deprecation of django.conf.urls.defaults.
Removed the deprecated django.views.generic.simple.direct_to_template.
verify_exists on the URLField doesn't exist any more!
Use the django1.5 compatible url templatetags. Fall back on the future template library for django v1.5-
Merge pull request #51 from kencochrane/master

Updated Google Checkout and Amazon FPS. Added missing features, and fixes. Thanks @kencochrane
Test for failing of payment to stripe when a decimal amount is provided.
Merge pull request #52 from chenhouwu/master

 fix: not compatible with decimal. Thanks @chenhouwu
Added @chenhouwu to the list of contributors. Thanks.
Fix chargebee tests broken by requests api change.
Fix the url tag usage
Small change to the example credit card form to prevent a 500 error on blank post.
fixed an issue in google checkout gc_cart_items_blob() some code was accidently removed in last update
Merge git://github.com/agiliq/merchant