renamed schnarchinator subdir to "www"

Signed-off-by: Thilo Fromm <github@thilo-fromm.de>
Add new entry only on state change; tune samples

Signed-off-by: Thilo Fromm <github@thilo-fromm.de>
Plotting: last 3 days, last week, last month

Signed-off-by: Thilo Fromm <github@thilo-fromm.de>
schnarch.sh: no soft-links required anymore

Signed-off-by: Thilo Fromm <github@thilo-fromm.de>
schnarch.sh: use POST requests to change state

Signed-off-by: Thilo Fromm <github@thilo-fromm.de>
schnarch.sh: better current state display

Signed-off-by: Thilo Fromm <github@thilo-fromm.de>
README: add screenshot to readme

Signed-off-by: Thilo Fromm <github@thilo-fromm.de>