security/py-cryptography: Update to 1.6

Changelog:	https://github.com/pyca/cryptography/blob/master/CHANGELOG.rst

PR:		214915
Approved by:	ports-secteam (with hat)
MFH:		2016Q4
Security:	CVE-2016-9243

security/py-cryptography/Makefile

@@ -2,7 +2,7 @@
 # $FreeBSD$
 
 PORTNAME=	cryptography
-PORTVERSION=	1.4
+PORTVERSION=	1.6
 CATEGORIES=	security python
 MASTER_SITES=	CHEESESHOP
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
@@ -21,8 +21,7 @@ RUN_DEPENDS=	${PYTHON_PKGNAMEPREFIX}six>=1.4.1:devel/py-six \
 TEST_DEPENDS=	${PYTHON_PKGNAMEPREFIX}pytest>0:devel/py-pytest \
 		${PYTHON_PKGNAMEPREFIX}iso8601>0:devel/py-iso8601
 
-USES=		python
-USE_OPENSSL=	yes
+USES=		python ssl
 USE_PYTHON=	autoplist distutils
 
 CFLAGS+=	-I${OPENSSLINC}

security/py-cryptography/distinfo

@@ -1,3 +1,3 @@
-TIMESTAMP = 1471010865
-SHA256 (cryptography-1.4.tar.gz) = bb149540ed90c4b2171bf694fe6991d6331bc149ae623c8ff419324f4222d128
-SIZE (cryptography-1.4.tar.gz) = 399707
+TIMESTAMP = 1480367088
+SHA256 (cryptography-1.6.tar.gz) = 4d0d86d2c8d3fc89133c3fa0d164a688a458b6663ab6fa965c80d6c2cdaf9b3f
+SIZE (cryptography-1.6.tar.gz) = 410073

security/py-cryptography/files/patch-src___cffi__src_openssl_ec.py

@@ -1,12 +0,0 @@
---- src/_cffi_src/openssl/ec.py.orig	2016-06-04 17:06:01 UTC
-+++ src/_cffi_src/openssl/ec.py
-@@ -371,7 +371,8 @@ EC_GROUP *(*EC_GROUP_new_curve_GF2m)(
- static const long Cryptography_HAS_EC2M = 1;
- #endif
- 
--#if defined(OPENSSL_NO_EC) || OPENSSL_VERSION_NUMBER < 0x1000200f || \
-+#if defined(OPENSSL_NO_EC) || \
-+    OPENSSL_VERSION_NUMBER < 0x1000200f && !defined(LIBRESSL_VERSION_NUMBER) || \
-     defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x20020002L
- static const long Cryptography_HAS_EC_1_0_2 = 0;
- const char *(*EC_curve_nid2nist)(int) = NULL;