Updating HISTORY.md entries
Update of `Node#getHTML()`'s unit test

Apparently, IE adds new lines in random places when getting innerHTML.
Merge pull request #985 from ziggyism/patch-2

Refix of  `Node#getHTML()`'s unit test
Revert "Remove path.existsSync as part of node 0.8 minimum environment"

This reverts commit 1b740375f2cd02af466acab8e481d5b4fc79297c.
Merge branch 'dev-master' into dev-3.x