 	/**
 	Run executable and return before it is finished.
 
+	- warning: will crash if ‘executable’ could not be launched.
 	- parameter executable: Path to an executable file. If not then exit.
 	- parameter args: Arguments to the executable.
 	- returns: An AsyncShellTask with standard output, standard error and a 'finish' function.

	/**
	Shortcut for shell command, returns output and errors as a String.

	- parameter executable: path to an executable file.
	- parameter args: the arguments, one string for each.
	- returns: standard output and standard error in one string, trimmed of whitespace and newline if it is single-line.

/**
Shortcut for shell command, returns output and errors as a String.

- warning: will crash if ‘executable’ could not be launched.
- parameter executable: path to an executable file.
- parameter args: the arguments, one string for each.
- returns: standard output and standard error in one string, trimmed of whitespace and newline if it is single-line.
