Update InputWidget.php

Hello Kartik, 

Glad you liked my suggestion. I'm sure it will help many people. 

I would suggest some more tweaking. 

I researched the subject and the crc32 algorithm is better than the adler32. 

I've also improved my script to generalize even more, so we can do this: 
```JAVASCRIPT
	$(':input[data-pluginoptions]').each(function(){
	    var pluginname = $(this).data('pluginname');
	    var pluginoptions = window[$(this).data('pluginoptions')];
	    $(this)[pluginname](pluginoptions);
	});
```
Hugs!