Merge pull request #20 from mylgeorge/prestashop_8

Added compatibility for PS 8.0.4

update v1.1.8

* Fixed a bug that prevented the module from working when a fresh install was made.

update v1.1.7

* Added "States" field in conditions to validate against the state of the delivery address.

update v1.1.6

* Fixed a bug for some PS versions < 1.6.1.0
* Added provision for PS version 1.7.6.0

Delete validation_alt.php

Update v1.1.4

* Fixed a bug when a decimal value in the "total cart value" condition's field wasn't valid.
* Fixed a bug with cart summary not shown correctly on some earlier Prestashop 1.7 versions.
* Taxes are displayed correctly in cart summary on Prestashop 1.7
* Improved compatibility with various Prestashop versions when adding the fee to carrier's fee.
* When reordering an order with COD Product, it will be deleted from the cart automatically (except for some early 1.7 PS versions).

Update v1.1.3

Fixed a serious bug in payment validation.

Update to v1.1.2

* Added option for order state after payment.
* Added some sanity checks for some parameters that might change in Prestashop from the user (tax rules, custom order states, countries , zones etc).
* Fixed a bug with ValidateOrder function.
* Visual improvements.

update v1.1.1

* Taxes are now displaying correctly in PS1.7 cart summary and in PS 1.6-1.7 invoice.
* Added buttons in condition parameter editing.

Updated to version 1.1.0

Added condition type to be able to disable module.
Fixed some bugs.