Minor tweaks to program control.

Detailed list:
- Added "password.txt~" to gitignore for added security,
	 git likes to generate these files
- changed the argument "mode" to "exitlist" for the parseFiles
	function. Mode is now hardcoded as 'r' and exitList (the
	new arg) is a list of commands the user can type to exit:
	EXIT, CONTINUE.
- Updated documentation for parseFiles.
- fixed user output to reflect changes in the parseFiles function.