[syslinux] Update Syslinux v4 to 4.07
[core] fix large FAT32 formatting for > 1TB disks

* Closes #159
[ui] prevent flicker on large FAT32 format.c

* Also convert 1.4TB FAT32 autolabel to 1_4TB rather than 14TB and
  use 2 decimal points rather than 1
add missing title for Chinese notifications
Merge branch 'master' into localization