adding \e to end of line launches editor on it
handle multiline \e entries
add headers command
If password is passed via command line, try to obscure it by resetting $0 (issue #11)
Replace <arguments> with <hidden> for clearer intent, suggested by @jpodlech
Merge pull request #12 from andrewgho/obscure_command_line_password

If password is passed via command line, try to obscure it by resetting $0 (issue #11)
Merge pull request #7 from dbushong/trailing-edit



Add support for trailing \e to make it easier to invoke editor on history
Merge pull request #10 from nohat/master

Add /headers command