2007-04-16 Jeffrey Stedfast <fejj@novell.com>

2007-04-16  Jeffrey Stedfast  <fejj@novell.com>

	Fix for bug #80710 (and a bug I introduced in my last fix due to
	this code assuming the underlying term echo state was always
	false) and other buglets that I noticed.

	* TermInfoDriver.cs (ReadLine): Set (term) Echo to false as we do
	our own manual echoing which prevents ^H from getting displayed on
	the screen when the user hits backspace.
	(ReadLine): If the user hits Backspace and builder.Length is 0, DO
	NOT echo the backspace back to the console, ever.
	(ReadLine): Only echo characters back to the console if echo is
	set to true. Seems the Echo ConsoleDriver property is a Mono
	extension, and I'm assuming this is the intended behavior? I can't
	see what else the Echo property would be useful for...

svn path=/trunk/mcs/; revision=75791