Rewrite continued:

Rewrite continued:
- the framework now attempts to initialize the application more OOP-ed
- this is done by calling 3 simple methods:
  + FrameworkBootstrap::initFramework();
  + FrameworkBootstrap::prepareApplication();
  + FrameworkBootstrap::startApplication();
- initFramework: 3 simple steps again:
  + scanFrameworkClasses: scans for framework-related classes, interfaces and
    exceptions
  + determineRequestType: determines request-type (console, html) and loads all
    given parameter into the initialized request class. It also initializes the
    response instance
  + validateApplicationParameter: validates the parameter 'app' if it is there
    and points to a valid application (very basic check, more later on)
- prepareApplication: Prepares detected application by attempting to load all
  required include files and only optional if present. Please note that some
  files are now deprecated and should be ported to the new methods (see below)
- startApplication: Starts the application by calling 3 methods:
  + setupApplicationData: replacement for data.php, sets all application's data.
    Please don't set any configuration stuff here, this is still done in
    config.php!
  + initApplication: Calls some additional methods to initialize application.
    Here is a good place to init database instance by calling the shiny new
    method initDatabaseInstance().
  + launchApplication: Still old method name which starts the application.
    Please remove any request/response-init stuff from here as it is now
    generically done in FrameworkBootstrap
- include files in framework/database/ are now all deprecated
- renamed framework/config.inc.php -> framework/config-global.php
- PrimeraPortal's API is history, so let us remove the obsolete file here, too
- some "contrib" files updated
- updated TODOs.txt
- moved rand.php to contrib/ folder

Signed-off-by: Roland Häder <roland@mxchange.org>