[FIX] barcodes,point_of_sale,stock,base: minor changes from code review
[FIX] stock: move to scrap option removed
[FIX] stock: retrieval of the current stock.picking improved
[FIX] stock: _search_and_increment method of stock.picking refactored
[FIX] barcodes: constraint on field pattern: checks if pattern is syntaxically correct
[FIX] barcodes: prepend a zero to ean13 barcodes scanned before looking for a match
[FIX] barcodes, stock, point_of_sale: no more doublons in type selection field in barcode.rule
[FIX] barcodes, stock, point_of_sale: parse_barcode function uses regex, pattern and barcodes may now contain special characters \ { and ., special character * replaced by .
[FIX] barcodes: manifest updated