##Current functions:
###lib_andre::io
Prints the argument to the screen like a prompt and waits for the users input, then saves it to a string and returns it.
pub fn prompt(ps: &str) -> Result<String, io::Error>
Example: let response = try!(prompt("Name?: "));
Takes a file name as a string and prints the contents of the file if it exists.
pub fn print_file(file_name: &str) -> Result<String, Box>
Example: print_file("/home/andre/sample.txt");