Maintenance release for 1.4

Several bugfixes since last tag

5c1f9cc Set unique name for AddNewMultiClass Selects (2017-05-03 14:48:33 +1000)
cbdb7d4 FIX: Prevent duplicate HTML IDs when adding new records inline (2016-11-30 15:47:24 +0000) [Loz Calver]
a27d601 Add italian translation (2016-11-16 02:49:07 +0100) [GitHub]
86f1778 fix(GridFieldAddNewMultiClass): Fix bug where class doesn't exist. (ie. ClassInfo says the class exists, but PHP itself doesn't, since ClassInfo is based on parsed tokens) (2016-10-16 20:05:35 +1100) [Jake Bentvelzen]
d722881 FIX Swap DataList code to SS_List (2016-10-12 17:24:20 +1100) [Marcus Nyeholt]
799f0a0 Finds base table to update LastEdited (2016-08-30 11:11:34 +1200) [Dylan Sweetensen]
9703aaa Feat: CMS Notice fired on successful GridField records reorder action (2016-08-23 17:06:56 +0200) [Milan Jelicanin]
0d13112 Added extra protection in case onadd update has ui == undefined (2016-08-20 04:35:52 +0200) [Milan Jelicanin]