* Advanced trading tidying, spelling fixes, private fixes and string fixes.
Fixes snap building issue with metal floors
Fixed spelling mistakes in various scripts
Fixed formatting uglyness in various scripts
Fixed invalid private lines in various scripts
Changed Advanced trading so buying worked more like selling, You can't
select backpack if you don't have a pack nor can you select a vehicle if
you don't have a vehicle.
Removed some redundant strings from Advanced trading and changed a few
of the strings to be more englishy
Removed the ability to buy a backpack into your backpack (You cant do
this anyway)
Fixed a bug where if you had nothing in your backpack it would break the
checkArrayInConfig script so the titlebar would not refresh correctly
Removed slot counts on no backpack and no vehicle (No need for it, just
clutter)
Moved backpack/vehicle checking to z_at_getContainer.sqf
* Last part of tidyness fixes
Last part of tidyness fixes
* Actual backpack fix
Lets actually fix the buying backpack into backpack or backpack when you
already have one.
* Missing from commit
Missing from commit
Only show Selected vehicleX systemChat message when clicking the buy
in/sell from vehicle button. Previously it was showing every time the
menu opened.
Also added better logging to RPT. Shows "Trader Menu: %1 x %2 added" and
"Trader Menu: %1 added"
