Automatically focus several form fields.
Accept replies to forum messages by subject recognition (#1616).
#2540, pt-br update
#2463, partially solved
#2445, nl.yml update
#2453, sv.yml patch, some errors still exist (see ticket)
Allow email to reply to a forum message (#1616).
Use In-Reply-To and References headers to handle replies by email.
translation updates (#2535, #2505, #2524, #2434)
#2442, small fix
