Add vimeo to blocksocial

I've added vimeo to my site, but every update to the module i need to add it again and again, so i thought it might be better to add it to the original module, only this is the first time i do this i don't really know how. I need to add code also on the global.css that how  i did it to add the vimeo icon, and also in the theme blocksocial.tpl:
		{if $vimeo_url != ''}
        	<li class="vimeo">
        		<a href="{$vimeo_url|escape:html:'UTF-8'}">
        			<span>{l s='vimeo' mod='blocksocial'}</span>
        		</a>
        	</li>
        {/if}