Checks if a newer version of Zappa is available.

    Returns True is updateable, else False.

def check_new_version_available(this_version):
    """
    Checks if a newer version of Zappa is available.

    Returns True is updateable, else False.

    """
    import requests

    pypi_url = 'https://pypi.python.org/pypi/Zappa/json'
    resp = requests.get(pypi_url, timeout=1.5)
    top_version = resp.json()['info']['version']

    return this_version != top_version