Prepare 0.4.4 release

Author: bosd

setup.cfg

@@ -2,7 +2,7 @@
 name = invoice2data
 author = Manuel Riel
 description = Python parser to extract data from pdf invoice
-version = 0.4.3
+version = 0.4.4
 url = https://github.com/invoice-x/invoice2data
 keywords =
   pdf