Added name to models

Added name field as a string to User, Friend, and Follower models.  To be used in typeahead.
Implemented MVP of Twitter Typeahead

Typeahead implemented using twitter-typeahead-rails gem.  No styling done.  Search box also refactored to search by name instead of twitter handle, to allow for usage by other social networks later.
MVC JavaScript for Twitter Typeahead

Twitter Typeahead suggestions are loaded via MVC.  Suggestions pulled from database via AJAX request in model, displayed on page via view.
Styles for Typeahead suggestions.

Basic styles for Typeahead suggestions. TODO: some CSS values are hardcoded as a temporary measure, to be fixed.
Merge pull request #1 from amolborcar/implement_typeahead

Implement typeahead