added "node connect auto" command

See merge request libdap-chain-net!43

# Conflicts:
#   dap_chain_node_cli_cmd.c

wepoll issues

See merge request libdap-chain-net!42

# Conflicts:
#   CMakeLists.txt

Feature 2648

See merge request !41

[*] changed in6_flowlabel_req name to in6_flowlabel_req_
[*] fixed "incomplete element type 'struct timespec'"
[*] fixed string error
[-] removed libmemcached
[*] __in6_u bug fixed
[*] string error fixed

Feature 2595last

See merge request libdap-chain-net!40

# Conflicts:
#   dap_chain_node_client.c

fixed bug for chain_name=NULL

See merge request libdap-chain-net!39

Feature 2652 2656

See merge request libdap-chain-net!38

Windows build fixed

See merge request libdap-chain-net!37

instead of datum hash a token hash is used in token_emit()

See merge request libdap-chain-net!36

[*]  Changed. The condition for checking which command is entered: global_db...

See merge request libdap-chain-net!35

[*]  Changed. The condition for checking which command is entered: global_db cells or global_db flush.

[+] Added command global_db flush.

See merge request libdap-chain-net!34

Feature 2618

See merge request libdap-chain-net!33

# Conflicts:
#   dap_chain_net.c

Feature 2630

See merge request libdap-chain-net!31