Create topic_web.py

ABOUT topic_web.py --- dynamic part of djotjog.com/search.html:
   (1) topic_web will parse google-messy search terms and return topics or stories.
   (2) first page shows these overlapping topics and subtopics, or stories with hyperlinked phrases inside them. Each topic and subtopic is a clickable phrase. It brings up more stories or reports that contain those words/phrases.
   (3) It can also display matching projects and organizations alongside stories. The idea is that mapping an idea cuts across multiple kinds of content.
   (4) lastly - also shows which subset of relevant stories pass quality control.