* Changed behavior of `f` to only add flag if there is none
* Changed behavior of `f+` to add flag in any case
* Moved listing subcommands from `f` to `fl`
* Moved listing subcommands from `f.` to `f.l`
* Added subcommand `f.l*` to list all local flags in all functions
* Listing flags at the current offset became `fl.`
* Moved `f=` to `fl=`
* Old `fl` (flag length) now became `fL`
* Removed original `fe` commands
* Old `f?` (check if flag exists) now became `fe`
* Removed `fV` commands
* Removed `fn` commands in favor of `fl` and `asm.flags.real=true`
* Removed `fS` commands (`fSo` and `fSn`)
* `fo` became `fortune` and moved from "flags" to "shell" category
* Removed oldshell handlers of the `z` commands
