~/.bashrc: Remove ls to ls++ alias (too slow, not really useful).

But I learned about the --group-directories-first option. :)

.bashrc

# shortcuts
alias _ls='/bin/ls --group-directories-first --color=auto'
alias ls='~/t/ls--/ls++'
alias ls='/bin/ls --group-directories-first --color=auto'
alias v='~/t/sh/v/v'
alias here='find . -type f -name '
# Find targets in a Makefile: targets <makefile>