Fxed encoding error when uploading files with non-ascii characters.

lib/foodsoft_file.rb

@@ -11,7 +11,7 @@ module FoodsoftFile
   def self.parse(file)
     articles, outlisted_articles = Array.new, Array.new
     row_index = 2
-    ::CSV.parse(file.read, {:col_sep => ";", :headers => true}) do |row|
+    ::CSV.parse(file.read.force_encoding('utf-8'), {:col_sep => ";", :headers => true}) do |row|
       # check if the line is empty
       unless row[2] == "" || row[2].nil?        
         article = {:number => row[1],