Whitespace is ignored

[denis-sokolov]

Empty text nodes are explicitly discarded. However, that is clearly wrong in some cases. Perhaps we should only collapse whitespace, but not discard it?

Before parsing:
<p><span>Hello,</span> <span>world!</span></p>
After parsing:
<p><span>Hello,</span><span>world!</span></p>

#9 provides an opt-in solution, but perhaps this should not be opt-in?

[rayd]

This should be resolved by #9 and this commit: 99d99ec. The default now is for us to collapse whitespace, not ignore it. Since this was a potentially breaking change, I've updated the major version number to 2.