Added developer tools service with datacenter method
Added developer tools service with datacenter method
Merge branch 'develop' into feature/datacenter-service

* develop:
  Updated/refactored to improve semantics and usability

Conflicts:
	src/Client.php
Improved semantics and added dev reference override to uri instead of header
Merge branch 'develop' into feature/datacenter-service
hot fix for references on search requests
Merge branch 'develop' of https://github.com/TheGenieLab/Brightpearl-PHP into feature/datacenter-service

# By James Pudney
# Via James Pudney
* 'develop' of https://github.com/TheGenieLab/Brightpearl-PHP:
  Added new order row POST method
Added sales receipts post.
Added beginnings of order search functionality