Fix order change on label create

Fixes:

• Added fix for call_user_func on static function not being static
• Change order status when enabled
• Fix products without shipping method (virtual/download)

Full Changelog: v1.5.0...v1.5.2

v1.5.0

GW-33 Added config option to set order status when label is created.
GW-56 Bulk creating of labels and printing them from the order overview.
GW-63 Printing from orderview via an action.
GW-68 Updated grid overview
GW-74 New GLS logo
GW-75 Improvement in saving shipping method
GW-77 Updated the shipping API call

Fix for editing non Order post types

The GLS Admin Meta box made none woocommerce order post types fail to load. The woocommerce wc_get_order acted differently than expected.

Update to 1.4.0

• Hide GLS Wrapper when GLS is not selected
• Printing labels gives an Error
• Change Labels used in checkout (Home Delivery, Parcelshop)
• Better error handling for V009 Error
• Add option to use only B2B or B2C AddressTypes

Several optimisations and fixes.

• Order Reference (Order ID) is now included in CreateLabel call.
• Deliver Address is now saved as post meta upon order creation (instead of after selecting Delivery Option)
• Fixed some notices.
• Added required Plugin Headers for WooCommerce Marketplace.
• If Company Name is entered, this value is now moved to Name1 and First and Last Name is moved to Name2.

v1.2.0

• Added free shipping above certain order amount per shipping destination.
• Fixed ShopReturnLabel always printed
• Fixed E-mailadresses partial or empty in api call to GLS when creating labels.

v1.1.3

• Updated readme.txt and added readme.md for github
• Updated frontend classes for unique styling
• Added translations
• Improvements for shipping rates

v1.1.0

• Add GLS as a shipping method to WooCommerce checkout.
• Show available Delivery Options depending on zipcode and shipping date, such as:
• • Express Delivery (e.g. before 9.00 AM, 12.00 AM or 5.00 PM),
• • Saturday Delivery,
• • Delivery to a ParcelShop (sorted by distance from zipcode).
• Easily create, delete or print labels by orders:
• • Including ShopReturn-label (if enabled).
• Enable/disable Express Delivery Services separately,
• Added Label creation and Track&Track information by orders.
• Delete Label functionality.
• Supporting Label Formats (A6, A4 2 per page, A4 4 per page).
• Improvements and bugfixes.