much better subtree marking, based on the largest-common-subtree algorithm
Merge branch 'gh-pages' of https://github.com/Pomax/DOM-diff into liveDemo
fix based on test case from jw
Merge pull request #34 from Pomax/jwtc1

fixes based on test case reported in https://github.com/Pomax/DOM-diff/issues/33
Merge branch 'gh-pages' of https://github.com/Pomax/DOM-diff into liveDemo
Partially working
Changed the names of some variables to make more sense