fix limits in order calls, close #29

switched to use forked guzzle-services for stability

fix nextCursor on listReleased #15

updating fillup/array2xml to fix php < 5.5 issue. closes #17

remove use of intval() on timestamp

added note about guzzle-services to readme

Merge branch 'vanhoavn-develop' into develop

Merge branch 'develop' of https://github.com/vanhoavn/walmart-partner-api-sdk-php into vanhoavn-develop

Merge pull request #11 from kcallenxu/patch-1

auth fix

fix next cursor field

Update AuthSubscriber.php

update version in readme example

move roave/security-advisories to suggestion

add default dummy consumer chanel id