Some of the tests from "spec/commands/ls_spec.rb" were failing on
Rubinius and 1.9.2. The problems was introduced by this commit:
(Tweak and Refactor Pry::Terminal)
fc522f837a
The problem is that `Readline.get_screen_size` can return `[0, 0]`.
That's not good, because it breaks a couple of our tests (table output
stuff). But now...
.o( ...it is fixed. Twit-twoo! )
\{0,0}/
The biggest behavior change is to favor `io/console` (but still not when
on jruby). The previous favorite was `Readline.get_screen_size`, but
that thing is stale just like the env. The only reason it gets updated
is if you put `Pry.auto_resize!` in your `~/.pryrc`
The next change is more error handling in `Pry.auto_resize!`
Otherwise I renamed `TerminalInfo` to `Terminal`, which is something
andrewvos and I discussed way back when `TerminalInfo` first came about.
The rest was a little Extract Method stuff, no biggie.
