Rename computeEffectiveNodes -> setUpEffectiveNodes
unlink: Make "unlink" command to return if selection is caret.
This patch fixes #6.
Merge pull request #5 from hajimehoshi/rename-compute-to-set-up

Rename computeEffectiveNodes -> setUpEffectiveNodes
Enable checker.py to execute almost all of the JavaScript files at once
Merge pull request #7 from hajimehoshi/enable-checker-all-tests

Enable checker.py to execute type-checking almost all of the JavaScript files at once

Thanks!