add payment specs
Update lib/sk_sdk/README.rdoc

add /api to example urls
fix payment_method spec
add specs for contacts
Merge branch 'master' of github.com:salesking/sk_sdk
add specs for contacts
update readme to use new contact class
update resource specs to use contact instead of deprecated client
patch activeresource to not double nest line items, add specs for new items array, remove use of price_tax
add license info to gemspec
add specs for item with zero 0 price_single
patches for active resource 4, errors parsing still buggy
Allow to pass array of scopes to SDK initializer

Allows apps to have nicer configuration files
Proper check of scope variable type
allow for additional collection info to be stored in ActiveResource v4+
Merge remote-tracking branch 'upstream/master'