Process common and combined formatted logs

• Output to stdout or mongodb
• Select fields to output
• Filter invalid entries
• Basic search

Usage

chopper [-s|--search_string] [-o|--outfile <path>] [-t|--type] [-f|--fields] [-b|--batchsize <value>] 
        [-h|--host <value>] [-p|--port <value>] [-c|--collection <db.collection>] 
        [-s|--search_string <value>] [-O|--outfile-invalid] [-v|--verbose][-h|--help]
        <command> [<args>]