Prepare release 4.8.0

CHANGELOG

@@ -1,3 +1,5 @@
+Version 4.8.0 - 2018-04-23
+* Bug fixes (see mercurial logs for details)
 * Add Erase Party wizard
 * Search party also by contact mechanisms
 * Add contact_mechanism_get

COPYRIGHT

@@ -1,6 +1,6 @@
-Copyright (C) 2008-2017 Cédric Krier.
+Copyright (C) 2008-2018 Cédric Krier.
 Copyright (C) 2008-2013 Bertrand Chenal.
-Copyright (C) 2008-2017 B2CK SPRL.
+Copyright (C) 2008-2018 B2CK SPRL.
 Copyright (C) 2008-2013 Udo Spallek.
 Copyright (C) 2008-2011 Korbinian Preisler.
 Copyright (C) 2008-2011 virtual things.

tryton.cfg

@@ -1,5 +1,5 @@
 [tryton]
-version=4.7.0
+version=4.8.0
 depends:
     country
     ir