1.5.2: Merge pull request #30 from TomCawthorn/patch-1

Allow data to be passed to public request method

1.5.1: Merge pull request #28 from ry167/master

Fixed incorrect variable name

v1.5

Update composer.json

getRegisters

Merge pull request #24 from heyday/master

add get registers call

Rate Limiting

Merge pull request #23 from gurubobnz/master

Support for "Too Many Requests" 429 response from Vend

initial release

Merge pull request #21 from gurubobnz/master

Added getCustomer and getProducts to VendSale object