[Creator] Fix a function name.

clone_container_and_run_command ->
clone_container_and_install_software
[Checker] Fix the function names.

check_zabbix_server_container ->
print_zabbix_server_is_installed_successfully

check_zabbix_agent_container ->
print_zabbix_agent_is_installed_successfully

check_nagios_server3_container ->
print_nagios_server3_is_installed_successfully

check_nagios_server4_container ->
print_nagios_server4_is_installed_successfully

check_nagios_nrpe_container ->
print_nagios_nrpe_is_installed_successfully

check_redmine_container ->
print_redmine_is_installed_successfully

check_fluentd_container ->
print_fluentd_container_is_installed_successfully
[Checker] Fix a function name.

check_container ->
print_result_of_check_item