v1.3.4

What's new

• Fix conflict with WooCommerce subscriptions in the product editor
• Add valid_for that tells how many days the license will be valid after purchased from stock
• Improve license create/edit screen field labels wording
• Fix invalid markup on the generator create/edit pages in admin
• Fix generator title badges in the generators list table in admin
• Fix license import functionality, do not set expiry date immediately and make use of the valid_for property
• Fix potential issue with stock decreasing and set validFor=null in save license procedure in admin
• Fix issue warning thrown when deleting licenses in the admin side, props @pondermatic
• Replaced WordPress meta function calls with WooCommerce product/order meta functions calls to comply with upcoming WooCommerce custom tables database implementation