Revert "python-tornado: update to 4.3."

This reverts commit e5529b8dbebd3988d81d336e2eb2adcf1e735c32.

This commit is dedicated to committers who just update packages for the
sake of it and clearly don't know what they're doing.

Often packages are out-of-date for a reason. If don't know the reason,
please do *not* touch them.

Also, this commit is wrong on so many levels and thus the package broken.
Good job!

srcpkgs/python-tornado/patches/01_use-system-ca-certificates.patch

@@ -1,11 +1,36 @@
---- setup.py.orig	2016-03-27 00:51:03.561989163 -0400
-+++ setup.py	2016-03-27 00:56:28.082046356 -0400
-@@ -132,7 +132,7 @@
+diff --git setup.py setup.py
+index f09169f..d42c486 100644
+--- setup.py
++++ setup.py
+@@ -120,7 +120,7 @@ if (platform.python_implementation() == 'CPython' and
          # 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')
 +        pass
-     if sys.version_info < (3, 5):
-         install_requires.append('backports_abc>=0.4')
      kwargs['install_requires'] = install_requires
+
+ setup(
+diff --git tornado/simple_httpclient.py tornado/simple_httpclient.py
+index f0f73fa..ffe3e40 100644
+--- tornado/simple_httpclient.py
++++ tornado/simple_httpclient.py
+@@ -33,17 +33,9 @@ except ImportError:
+     # ssl is not available on Google App Engine.
+     ssl = None
+
+-try:
+-    import certifi
+-except ImportError:
+-    certifi = None
+-
+
+ def _default_ca_certs():
+-    if certifi is None:
+-        raise Exception("The 'certifi' package is required to use https "
+-                        "in simple_httpclient")
+-    return certifi.where()
++    return "/etc/ssl/certs/ca-certificates.crt"
+
+
+ class SimpleAsyncHTTPClient(AsyncHTTPClient):

srcpkgs/python-tornado/patches/02_no-backports.ssl-match-hostname.patch

@@ -1,11 +1,14 @@
---- setup.py.orig	2016-03-27 00:58:07.039283532 -0400
-+++ setup.py	2016-03-27 01:00:27.437038804 -0400
-@@ -125,7 +125,7 @@
-     if sys.version_info < (2, 7):
-         # Only needed indirectly, for singledispatch.
-         install_requires.append('ordereddict')
+diff --git setup.py setup.py
+index f09169f..f795807 100644
+--- setup.py
++++ setup.py
+@@ -121,7 +121,7 @@ def build_extension(self, ext):
+ if setuptools is not None:
+     # If setuptools is not available, you're on your own for dependencies.
+     install_requires = []
 -    if sys.version_info < (3, 2):
 +    if sys.version_info < (2, 7, 9) or (3, 0) <= sys.version_info < (3, 2):
          install_requires.append('backports.ssl_match_hostname')
-     if sys.version_info < (3, 4):
-         install_requires.append('singledispatch')
+     kwargs['install_requires'] = install_requires
+ 
+

srcpkgs/python-tornado/template

@@ -1,6 +1,6 @@
 # Template file for 'python-tornado'
 pkgname=python-tornado
-version=4.3
+version=4.2.1
 revision=1
 wrksrc="tornado-${version}"
 build_style=python-module
@@ -14,7 +14,7 @@ maintainer="Alessio Sergi <al3hex@gmail.com>"
 homepage="http://www.tornadoweb.org/"
 license="Apache-2.0"
 distfiles="${PYPI_SITE}/t/tornado/tornado-${version}.tar.gz"
-checksum=c9c2d32593d16eedf2cec1b6a41893626a2649b40b21ca9c4cac4243bde2efbf
+checksum=a16fcdc4f76b184cb82f4f9eaeeacef6113b524b26a2cb331222e4a7fa6f2969
 
 pre_build() {
 	# remove shebang