adding titles and summaries to social media share links

I added parameters into the links instead of using Open Graph tags (og tags) as discussed with Dak. OG tags give us more control over what displays when shared, especially in Twitter. But, this is still a big improvement over what we have now.
I created a method for title to pass in to socialmedia helper. I have removed the method and am not passing in the helper instead. Did not know that a helper can be passed in as a parameter.