Create 10.0.4 tag

Create 7.7.4 tag

Fix Perl 5.16 compatibility

utf8::decode(undef) would return an empty scalar '' instead of undef.
Don't use it without an input value!

This conversion was causing fwd/rew/pause and more buttons to fail on
web UI as well as IR remote and on-device.

Add list-of-index values as delete option for favourites.

Change-Id: I797d415bb5490e9885fcd63573b9d1ef4745716a