* Of course, since Grub4DOS's grldr.mbr hasn't changed from previous releases
there's not much to update there, but then again, people like version bumps.
* GRUB have cherry-picked patches from the "BootHole" vulnerability fix at
https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html and
have applied them to their 2.04 GRUB loader.
* This results in breakage with "error: symbol 'grub_calloc' not found" when
using the release GRUB 2.04 version of core.img.
* Therefore, we too cherry-picked some patches to apply on top of GRUB 2.04
release to make our core.img compatible with Ubuntu 20.10.
* Closes#1616
* Also increase the maximum write stride for ms-sys to 64 KB (required to
write the GRUB 2.05 bootloader which is larger than 32 KB) and update hash DB.
* Just update the headers really, since all the core.img
from 2.02~rc1 upwards have been binary identical.
* Also fix a potential small issue in process.c
* Since, despite what Microsoft states, having 'requireAdministrator' in a manifest STILL isn't
enough to prevent an app from launching as non elevated for some weird account configurations...
* Closes#757
* Downloadable content will now be indicating, in the log, whether it can be trusted with ✓ (validated) or ✗ (caution)
* Of course this validation only applies for files we know of, i.e. the downloadable content that existed at the time the DB was
created. So, if Syslinux 8.x gets released tomorrow and we put it on our server, you'll get an ✗ regardless of its integrity.
* Closes#758
