get Selenium version used by Selenium2Library and log it

get_sel_vers.py

from robot.libraries.BuiltIn import BuiltIn
from robot.api import logger

def log_s2l_version():
    """
    Gets the Selenium version used by Selenium2Library
    """
    seleniumlib = BuiltIn().get_library_instance('Selenium2Library')
    browser = seleniumlib._current_browser()
    sel_version = locals()['webdriver'].__version__
    logger.info('Selenium Version is: %s' % sel_version)
    return