Improvement to @windyGex's awesome work from #717. This entirely removes the cases where preact would erroneously invoke appendChild() when it didn't need to.  The diff no longer depends on DOM length values 🎉  Big thanks to @e1ectronic for pointing this out and providing a great repro (http://jsfiddle.net/o402afwp/).
Improvement to @windyGex's awesome work from #717. This entirely removes the cases where preact would erroneously invoke appendChild() when it didn't need to.  The diff no longer depends on DOM length values 🎉  Big thanks to @e1ectronic for pointing this out and providing a great repro (http://jsfiddle.net/o402afwp/).

developit/preact,neeharv/preact,developit/preact,neeharv/preact