Added a command line interface
Url can also be passed via command line

Indexname can also be specified
Grouped parameters in a common structure
changed -r option with -f
num_replicas and num_shards can be specified
Default values are set with the function init_elastic_nfcapd
The function create_index gets the config settings
Set "netflow" as default index name
document type can also be configured
bug fix
Integrated index creation code