Minor adjustment

Replaced series of spaces with tabs. Changed color of links in footer,
added one anchor. Added paragraph-tags for paragraphs.
More cleaning

Moved phpProxy into a new folder, rearanged some code. Replaced series
of spaces with tabs in minimal.js.
Render done activation improved

Included promise when done rendering, error when corrupted pdf is
recived. Function defined in function arg. (made link to code italic)
Some corrections and began NOVA

minimal.js: Now checks function args, id and week, corects undefined.
index.html: Adjusted userIdValid function and created variable NOVA that
is supposed to cover the complete library.
php: minor adjustments