make it easier to see ES docs when debugging wrapper

[bengland2]

set log level to DEBUG if snafu_debug env. var. defined
otherwise set it to INFO

[aakarshg]

Traditional way to do this would be by adding arguments such as v or vv using argparser and then setting loglevel as commented. It's just a suggestion to improve things, but this is a nice add @bengland2

[aakarshg]

Instead of this, can we follow the methodology that most python programs follow i.e. through simple argparse:

     parser.add_argument(
        "-v",
        "--verbose",
        dest="loglevel",
        help="set loglevel to INFO",
        action="store_const",
        const=logging.INFO)
    parser.add_argument(
        "-vv",
        "--very-verbose",
        dest="loglevel",
        help="set loglevel to DEBUG",
        action="store_const",
        const=logging.DEBUG)

[aakarshg]

and then this can be

setup_loggers("snafu", args.loglevel) 

[acalhounRH]

+1

[bengland2]

that's ok with me, my point is that there should be SOME way other than code change to have run_snafu.py turn on display of documents that it's pushing to ES. And I'll add change to documentation to explain how to do this.

[bengland2]

The above commit implements aakarsh's suggestion. OK?

[aakarshg]

This is neat, nice work @bengland2