Merge pull request #226 from s7anley/master

use Object.toString() instead of window.toString()
Bump version to 0.9.2
Remove unused file
fix placement relative to tall elements

If the element is very tall, prevent the tooltip from being pushed offscreen; make sure that the placement of the arrow cannot escape the range of 0-50% of tooltip height or width
fix broken change.

got the min and the max backwards; sorry
Merge pull request #235 from Meshfire/master

fix placement relative to tall elements