slapos_accounting: French taxes changed to 20% in 2014

This were already been used in productions sites for a quite long time.

master/bt5/slapos_accounting/PathTemplateItem/sale_trade_condition_module/slapos_aggregated_trade_condition/1.xml

@@ -48,7 +48,7 @@
         </item>
         <item>
             <key> <string>price</string> </key>
-            <value> <float>0.196</float> </value>
+            <value> <float>0.2</float> </value>
         </item>
         <item>
             <key> <string>quantity</string> </key>