Added jQuery params array

Added jQuery params array to be able to further customize the name of
the "animated" class.
Custom CSS transition timings become possible this way for example.
Added plugin params array

- Custom "animated" class can be assigned
-Plugin is now open for further external parameters
Update README.md
Update README.md
Update README.md
Update README.md
Check second parameter

If "callback" is an array then it's the params array.
Merge branch 'master' of https://github.com/bitflower/animateCSS
Added minify engine
Merge pull request #5 from bitflower/master

Params array that allows to pass custom animated class