update to 8.0 (not finished yet)
tg_pos_enhanced: update module.Order and module.Orderline
[FIX] rename Orderline
migration: further update for js,css,xml
further migration updates
there is some problem in printing ticket
tg_pos_debt_notebook: migration to 8.0
furher mirgration  updates
rm print some logs
migration: fix uploading pos.order
fix ticket printing
tg_pos_enhanced: migration fixes
[FIX] add cashdrawer and invoicing buttons
on payment screen
[IMP] auto print option
[FIX] tg_pos_enhanced: customer buttons is not activated if there is
proxy printer
Merge commit '06f274e496f8ea10082a2d2c674fb55e2771e7b1' into 8.0