fixing typos
added a new option, hideOnClick, which extracts the hide-on-click functionality previously added to keepAlive
adding option delayHide, the number of msec to wait before hiding the tooltip. Plays nice with hideOnClick
Updated README.txt with some documentation on recent changes
prevent the browser from displaying the native tooltip on first hover
Merge pull request #2 from EnergySavvy/master

Adding features from alanhussey: hideOnClick and delayHid options