- Fixes Doom's former inability to (trivially) juggle multiple profiles
based on the same EMACSDIR (see #6593).
- Adds '--profile NAME' switch to bin/doom (also recognized
$DOOMPROFILE).
- Adds new doom-profile* variables. These will eventually replace
doom-{local,etc,cache}-dir and doom-{autoloads,env}-file.
This is intentionally messy to ensure backwards compatibility for a
little while longer. This will be fixed over the next couple weeks.
Ref: #6593
5af38fb08e