Add Catalan translation.

locale/ca_ES.po

@@ -0,0 +1,31 @@
+# 
+msgid ""
+msgstr "Content-Type: text/plain; charset=utf-8\n"
+
+msgctxt "field:product.template,supply_on_sale:"
+msgid "Supply On Sale"
+msgstr "Subministra a la venda"
+
+msgctxt "field:sale.line,purchase_request:"
+msgid "Purchase Request"
+msgstr "Sol·licitud de compra"
+
+msgctxt "field:sale.line,purchase_request_state:"
+msgid "Purchase Request State"
+msgstr "Estat de la sol·licitud de compra"
+
+msgctxt "selection:sale.line,purchase_request_state:"
+msgid ""
+msgstr " "
+
+msgctxt "selection:sale.line,purchase_request_state:"
+msgid "Cancel"
+msgstr "Cancel·lat"
+
+msgctxt "selection:sale.line,purchase_request_state:"
+msgid "Purchased"
+msgstr "Comprat"
+
+msgctxt "selection:sale.line,purchase_request_state:"
+msgid "Requested"
+msgstr "Sol·licitat"

setup.py

@@ -56,6 +56,7 @@ setup(name='trytond_sale_supply',
         'Intended Audience :: Legal Industry',
         'License :: OSI Approved :: GNU General Public License (GPL)',
         'Natural Language :: Bulgarian',
+        'Natural Language :: Catalan',
         'Natural Language :: Czech',
         'Natural Language :: Dutch',
         'Natural Language :: English',