Rename vifm-patedit filetype to vifm-edit
Support exteditor for prompt mode in commands
Enable c-g for prompt on file renaming

Thanks to filterfalse.
Document Ctlr-G in prompt mode of cw or cW
Merge branch 'add-extedit-for-cw-rename'

Allow editing file names in external editor on hitting Ctrl-G shortcut
while in prompt submode of command-line editing mode.

Thanks to filterfalse for the idea.