changed indentation rule for jshint to 2 from 4 spaces
removed fluff
removed old syntax ie .isInViewport(options). You can now only use :in-viewport
selector to use the plugin. For details on this decision please read
my comment on issue #4
updated version to 2.0.0-alpha
added explanatory text to last div in the example
fixed the text to be more explanatory and changed indentation to 2 spaces from 4
fixed text in the last div to be more explanatory