Rename Thai menu (Gift Card)
Update Thai translate

Update Thai translate
Add receivings_quantity to item form

Conflicts:

	application/libraries/Receiving_lib.php
	database/2.3_to_2.3.1.sql
Set default receivings value for items to 1 in database
Fix item quantity save
Merge pull request #2 from songwutk/patch-1

Rename Thai menu (Gift Card)
Merge pull request #4 from songwutk/patch-3

Update Thai translate