Fixed GH issue #157 ArgumentError - invalid byte sequence in UTF-8

[bsodmike]

In Ruby 1.8 String was a collection of bytes, moving to 1.9 it's both the raw bytes and the attached Encoding information.

Works on Ruby 1.9.3-p0, Mac OS X Lion 10.7.2

[bsodmike]

Hi @goncalossilva- I just updated it to ensure compatibility with Ruby 1.8.x as well =)

[bsodmike]

Update- I decide to stick with slide_subsection and cleaned it up a bit. Tested with 1.8.7-p334 and 1.9.3-p0

[goncalossilva]

I don't feel confortable with just forcing that string to be UTF-8. I'd prefer to use Encoding.default_internal and Encoding.default_external to achieve this.

However, I was trying to reproduce this bug and couldn't do it. It's possible that one of the recent changes also fixed this. Could you provide a simple example which fails against master?