Added the start of the actual application.

* updated redirects in the LoginServlet to include the /accounts in the link
  and added more explicit notes about when the information for a login or a
  sign-up is incorrect.
    src/main/scala/org/ucombinator/webapp/LoginServlet.scala

* moved inline html out to ssp include files and created a new wrapper
  template.
    src/main/
      scala/org/ucombinator/webapp/LoginServlet.scala
      webapp/WEB-INF/templates/
        views/account/login.ssp (new)
        layouts/tapas.ssp (new)

* added file-upload for Android APK files, listing of uploaded apps, and an
  analysis page that essentially returns the same data the command-line tool
  provides, using the same set of classes to perform the analysis, and the
  same settings.  Also added upload time stamp to apps table and addApp and
  getApps methods.
    src/main/
      scala/org/ucombinator/webapp/
        TapasServlet.scala
        db/DDL.scala
        model/Models.scala
      webapp/WEB-INF/templates/views/
        index.ssp (new)
        upload.ssp (new)

* added start of css and js files for styling things.
    src/main/webapp/
      css/normalize.css
      js/html5shiv.js
Running example that writes to the database to the file system
fixed up the database so that it will be created on start up, if needed, and left alone if not.