XMonad.Prompt.Input is a new module which provides a framework for
prompting the user for input and passing it along to some other action,
useful for building actions which require user input.
XMonad.Prompt.Email is a simple example of the use of XMonad.Prompt.Input,
which prompts the user for a recipient, subject, and body, and sends
a one-line email.
I also made a small refactoring to XMonad.Prompt in order to support
XMonad.Prompt.Input.
XMonad.Prompt.AppendFile is a new module which provides a prompt for
appending a single line of text to a file. I use it for quickly
writing down ideas/todos/etc. to a special file when I can't be
bothered to stop what I'm doing to write things down properly.
The latter is pretty useless, as there's no way to find out what
layouts are available, but it can at least allow you to select between
any layouts that you happen to be using already (in one workspace or
another). The former is handy any time you'd rather have a short name
for a layout (either for selecting, or for viewing in a status bar).
