Notify if no targeted share button elements are found
Allow for multiple instantiations,
Also:
- Optimized DOM selections
- Inject fonts in main file
- Alert on FBJS failure
- Allow for local FBJS development
- Add examples.html

Closes #17
Configurable Flyout
Top/Bottom Flyout
added jQuery to support jQuery.noConflict()
Center Twitter and Google+ Popups. Closes #33
add image to readme
Allow for blank button text. Closes #35.