Release 1.0.2

Added

• Added a new API method for upserting a custom field to a device.
  The method is a POST/PUT to /devices/{device_id}/customfields
  and supports the key custom_field with the field name or the field id along with the value.

• Added a new API method for showing a custom field of a device.
  The method is a GET to /devices/{device_id}/customfields/{customdevicefield}

Changed

• The API method for POST to /devices/{device_id}/customfields
  now supports upserting a custom field to a device.
  The key custom_field_id was renamed to custom_field
  and now supports the field name or the field id.

Release 1.0.1

Initial release