Zarrar b9f54ca946 [Enhance] Group same items during printing Delivery Note, Invoices, etc (#14250)
* add doctypes allowed to group items, average the rate

* add check field to group items during print

* call common before_print in delivery note

* fix precision issue while calculating average
2018-05-28 17:41:09 +05:30
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2018-01-30 15:27:29 +05:30