add escape function for tag text.
add cdata-like tag.
add test for escape tag.
Revert "add cdata-like tag."

This reverts commit bef9c09598b13a820b0478c32afeb6a785597e22.
another method of adding an escape tag.
revert nowrap test back to old content.
Fixes last character cropping bug
Fixes scroll wheel support with modifiers for GNOME Terminal
Merge branch 'mousewheel-modifier-keys-fix'