fixed deleteBookmark so that it actually works
added image, description, and tags elements to createBookmark function in functions.js
Merge branch 'master' of https://github.com/trucnguyen/visual_bookmarks
added extract.js file which will contain methods for extracting important web elements from the page
created getBiggestImage function which calls a helper function to find the biggest valid image
bookmark pane no longer opens when saving
added pageType function and parameter that determines if the page is an image, youtube video, or just a normal html page
app now records url for embedding a youtube video
fixed padding for last bookmark element
reversed order that bookmarks appear
drag and drop tagging interaction works, doesn't connect to local storage