prepwork to turn the repo into a standalone website with all the examples/applications:

- added PieCrust as git submodule in util/PieCrust

- the 'website' sources for PieCrust have been placed in the 'original/' directory: right now they're a straight copy of the PieCrust sample website sources.
moved directories into the `original/` tree so that it all should work out with `PieCrust` baking... (It turned out to be to much work to make it work correctly when the code/ tree is moved into the PieCrust _content/pages/ subtree however, so we take a bit of a round-about route to this 'website' thing here.)
PieCrust: point website index page at the applications' pages. Removed the superfluous PieCrust demo files.
adjust the 'website' credentials and title.
correct the look given the current webfont: no ugly clipping of the page header title.
added minimal Makefile to run PieCrust and regenerate a.k.a. 'bake' the website (static files' set)
adjusted the README which was explaining where you could find what.