2.2 Added "like" and "dislike" functionality, add new projects, other small tweaks
-Added
--Appropriate public functions to projects controller
--Better "alert" functionality. Javascript alert doesn't always work, using Bootstraps modal now
--Progress bar to projects
--Required functions/db interaction in social_projects_model. 
--Also made social model "set_user" function so all user specifics are easy to get the user_id, etc
--Some progress-bar specific css
--global.js now structured/utilizing jQuery setup with ".click"s, ajax call, and other logic (bootstrap modal & update social count)
--Added submit btn to profile form that creates new projects
--New nav item for "my projects" (need to be logged in)
--In _header, javascript element that collects the $base_url() from php
-Changed
--your_projects.php to my_projects.php
--Nav item from "home" to "public projects" (need to be logged in)