Exclude escape sequences about cursor and screen from text

Hello.

If we give text to `html()` like so;

```perl
my $w = HTML::FromANSI::Tiny->new(auto_reverse => 1, background => 'white', foreground => 'black');
$w->html("^[[1A^[[2KPhantomJS 1.9.7 (Linux): Executed 5 of 10^[[32m SUCCESS^[[39m (0 secs / 0.066 secs)^[[0m"),
```

then, we'll get...
![http://gyazo.com/ccd1c0f9b4cc309c417aadd04f0787fe.png](http://gyazo.com/ccd1c0f9b4cc309c417aadd04f0787fe.png)

In this case, `[1A` and `[2K` are escape sequences to control screen and cursor. I feel such as these are noisy.

So I wrote a patch to exclude them.

How do you think?
Is execute such processing at this module right?  Or we should give pre-processed text to method?