www/py-tornado: remove py-backports.ssl_match_hostname dependency

since python 2.7.9 ssl.match_hostname() function is in standard library, so
there is no need to depend on security/py-backports.ssl_match_hostname anymore
as stated in tornado's setup.py:

"""

if sys.version_info < (3, 2):
    install_requires.append('backports.ssl_match_hostname')
if sys.version_info < (3, 4):
    # Certifi is also optional on 2.7.9+, although making our dependencies
    # conditional on micro version numbers seems like a bad idea
    # until we have more declarative metadata.
    install_requires.append('certifi')

"""

Remove this dependency and bump PORTREVISION.
While here sort USE_PYTHON components, add missed space in Makefile header.

PR: 201050
Submitted by: rm (myself)
Approved by: Guixing Bai <khsing.cn@gmail.com> (maintainer)