Run js-beautify on server.js file

No logic chages in the code.
What was done:
$ git clone https://github.com/einars/js-beautify.git
$ $ git describe
v1.4.2-11-gf416b0b
$ cd PiThermServer
$ ../js-beautify/python/js-beautify server.js > server.js.new
$ mv server.js.new server.js
Keep running after local sensor read error

It allows to run the server without local sensor.
(Error is printed to the console.)