Moved all presence functionality into the stack layer from coap layer.
-rw-r--r-- 953 .gitignore
-rw-r--r-- 7615 Readme.scons.txt
-rw-r--r-- 1130 SConstruct
-rw-r--r-- 216 arduino.scons
-rwxr-xr-x 2531 auto_build.sh
drwxr-xr-x - build_common
drwxr-xr-x - extlibs
-rw-r--r-- 2575 extra_options.scons
drwxr-xr-x - resource
-rw-r--r-- 8785 scons_script_how_to.txt
drwxr-xr-x - service
drwxr-xr-x - tools