Terminal view alignment at bottom might be better

[Daniel J Sebald]

After using the GUI for a while I've noticed that the alignment of the 
terminal window is at the top, meaning that there is always a complete 
line and not a fraction of a line visible at the top.  The consequence 
of this is that the bottom of the terminal is not aligned and there can 
be a fraction of the line extending past the end of the view depending 
upon how one manually sizes the window.  This isn't nice to work with 
because all the activity when typing is at that bottom line.  If one 
thinks about it, the typical terminal window in a desktop environment 
doesn't have this concern because the overall size of the window jumps 
in discrete character heights, not pixel sizes when adjusted.

The routine that computes position, from what I gather, is 
TerminalView::scrollImage in TerminalView.cpp, and in fact the alignment 
point does seem to be upper left:

// note:  it is important that the area of the display which is
// scrolled aligns properly with the character grid -
// which has a top left point at (_leftMargin,_topMargin) ,
// a cell width of _fontWidth and a cell height of _fontHeight).

The code in this file is derived from somewhere else, so I'm not sure 
how we handle this situation.  Just make edits?

I suppose there are two ways to address this:

1) Allow alignment at the top left, but make sure there is no fractional 
line at the bottom.  Instead, allow there to be a fractional line of 
white space at the bottom.

2) Alignment at the bottom left, which means that the top of the 
terminal window is where there will be a fractional line.

I kind of prefer the second behavior for the reasons that the top of the 
window isn't where the user's eyes are drawn when typing and also a 
fractional line at the top does give the impression that the text is 
scrolling upward and there might be additional lines scrolled past the 
top of the window.

Dan