Removed redundant vendor specific rules

Tested in Chrome, Safari, Firefox, Opera and it should work in IE.. could test it tomorrow!

Here you can see that is pretty safe to remove the `-moz` and `-o` and most of the animations:

- http://caniuse.com/css-animation
- http://caniuse.com/transforms2d
- http://caniuse.com/pointer-events

P.S. Awesome project...