[watchdog] fixed some minor issues (better help + better defaults);
[scripts] added feature/ddhcp to merge_experimental.sh script;
[robustness] added some try catchs to apiserver/client code;
[apiclient] sending "shutdown" packet on shutdown;
Merge branch 'feature/core' into experimental
Merge branch 'feature/watchdog' into experimental
[scripts] moved scripts into separat folder;
[merge script] added feature/scripts branch to merge_experimental.sh;