#1 other field handling

[Tim Riker]

id3v2 -f shows all the fields by name.

error messages are by number:

#id3v2 --APIC - 3.11It\'s\ Yourself.mp3
frame.cpp (304): field not found:

-l and -R are both by description.

there should be some way to tie these together. I
suggest and list mode by tag name (ie: APIC) only.

Also is there any way to delete an APIC field?