Changes

=== Picture this: a query into, for instance, <code>#ycombinator at a 7/28/2016 1527hours CST</code> will yield a '''geo-visualized''' world map at the bottom-most layer, indicating activities of tweets associated with #ycombinator. Above the world map, there will be neatly separated communities of nodes and edges '''network-visualized''' to indicate the interest groups talking about this topic. There will also be lists of reports done by '''tweet analytics'''. Each part of the Viz&Ana can then be converted into other data structures and processed by other analysis software. ===Imagine that.