[*] Updated python-cellframe: added check of dap_server_t pointer for NULL...
[*] Updated python-cellframe: added check of dap_server_t pointer for NULL when adding various network request handlers. Up version node to 5.1-242.
[*] Updated python-cellframe: added check of dap_server_t pointer for NULL when adding various network request handlers. Up version node to 5.1-242.