fix bug with scrolling region and resizing causing rendering issues
add 256-color support

Conflicts:
	src/content/js/etc/cli.js
sync to latest paramikojs
detect wide characters better with wcwidth

Conflicts:
	src/content/blank.html
	src/content/firessh.html
tweak 256 colors and logging
do auto-copy on selection

Conflicts:
	src/_locales/en_US/messages.json
	src/content/js/etc/cli.js
more color work
improve auto-copy

Conflicts:
	src/content/js/etc/cli.js
don't copy if collapsed