Check all ascii characters when measuring font's baseline to avoid brackets and underscores falling too low.

This reverts commit 0a714f50.

Performance improvements for Find. Convert positions to x,y ranges in batches. Cache block position in findSubstring:stopAt.

Change how font sizes are estimated by looking at all upper case letters' estimates and the actual bounds of 'X' to determine the bounding box. Looks at 'x' and 'y' to determine real descender. Fixes bug 1108. Also mostly fixes Consolas (though its baseline is still one pixel too low).

Show menu bar before creating a normal window. This prevents the miniaturize button from being hidden. Fixes bug 1088.

optimize reverse search for long lines, which used to beachball. Fix crash when closing a window that is doing a search.

Change label of Closing Hotkey Window May Switch Spaces. Turn it on by default. Addresses comment in bug 823.