2.0.0-RC2: Merge pull request #3 from productsupcom/CPU-899

WIP CPU-899 - JSON Testing

Release Candidate for 2.0.0

2.0.0-RC1

Update Service.php

1.1.3

minor bug fix concerning import history

bug fix

• don't send empty post requests for product upload

add import_schedule for sites

1.1.1

add import_schedule to sites in api

additional endpoints, minor tweaks

• additional endpoints:
  • channels
  • channel history
  • import history
  • product data
• allow to disable discard from shut down handler
• getter for reference value

version 1.0.0

First version for the productsup API client.