Add basic resource files + small changes

Add testing .ttl and .json data files
Add cropped version of app.gif
Update .gitignore to ignore common generated files
Add Twitter Bootstrap resources
  -bootstrap-theme.min.css
  -bootstrap.min.css
  -bootstrap.min.js
Add basic servlet + jsp structure

Index.html shows mockup of landing page allowing login

Index.html -> calls LoginServlet.java
LoginServlet.java -> forwards to login.jsp for processing
login.jsp -> forwards to parser.jsp (for testing)

Added nodes.css and styles.css for styling
Add basic graph display code

Add topology.js and display.html for basic force-graph display of
topology