preliminary popover implementation
removed jshint unused constraint
correct popover position on fixed el's, refactored popover
tweaked popover positioning logic
refactored popover width, popover does not overlay target
add 15px buffer to popover
popover tail implemented
tail follows scrolling
updated dist
remove unused option
updated readme to reflect popover addition
version 2.0.0 release
Merge pull request #3 from musocrat/2.0.0

2.0.0 release