fix &amp; example to make sense when rendered as markdown

Before it looked like `"&amp;" will become "&", for example, not "&"` which doesn't make sense
Merge pull request #25 from jaredly/patch-1

fix &amp; example to make sense when rendered as markdown
Explicitly specify indices for .format
Test to see if Python 2.6 is being used, and use a positional argument for errors in decode, rather than the keyword 'errors='
Merge pull request #30 from LuminosoInsight/2.6-compatibility

2.6 compatibility