Adding the functionality for certificate mappings to the PHP SDK
Formatting changes
Make $createKeys protected

Follows the example of other child classes
Make updateJson method more efficient

Also throws an exception when trying to update an invalid field.
More formatting changes
Match variable name to docblock
Var type is int
ID for certificate map, not Load Balancer
Update documentation for certificateMapping()
Merge pull request #1 from JPry/certificate_mappings

Modifications to PHP Opencloud
Merge branch 'working' of https://github.com/rackspace/php-opencloud into certificate_mappings
Reliably remove a container and its objects
Adding unit test to verify we hit the right URL
Merge branch 'certificate_mappings' of github.com:tylerturk/php-opencloud into certificate_mappings
Return from if block so else block is not necessary
Allow for timeout to be estimated
Remove debugging statements.
Return response of container deletion API call.
Remove waiter method (no longer used) and associated tests.
Fixing spacing issue