[httpd] index.html: add autoscroll feature
[lib, sensord] Change update protocol + add lib
[lib] wire: add method to recieve a sensor update
[lib] move i2c-fake.h to lib directory
[lib+sensord] move i2c+devices code to lib
[lib] add support for htu21d i2c devices
[tools] add htu21d cmd line tool to read its data
[sensord+lcd+httpd] correctly handle udpt pkg type
[sensord+lcd+httpd] add support for humidity
[lib+sensord] move util namespace to lib
[stored] first incomplete store daemon version