Anubis / Xlib

…itial_state() function.

Allowing to define the states folder

- headers are now read using a buffer and no more bytes per bytes
- adding headers 'Date' and 'Last-Modified' allowing to improve efficiency of browser cache
- adding header 'Server' just for decoration.

…h the displayed label.

Adding function to read http headers

Removing 'label' tag when empty on check-boxes

add table header row and header cell