- Enable concurrent installation support for different python versions

- Remove LATEST_LINK and the usage of math/py-numpy's options - both do not
  seem to have any value for the port

PR:		192893
Submitted by:	myself
Approved by:	wen@ (maintainer)

science/py-scipy/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	scipy
 PORTVERSION=	0.14.0
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	science python
 MASTER_SITES=	http://docs.scipy.org/doc/${DISTNAME}/:doc \
 		SF:source
@@ -23,11 +23,8 @@ LIB_DEPENDS=	libfftw3.so:${PORTSDIR}/math/fftw3
 RUN_DEPENDS=	${PYNUMPY}	\
 		nosetests:${PORTSDIR}/devel/py-nose
 
-LATEST_LINK=	py-${PORTNAME}
-OPTIONSFILE=	${PORT_DBDIR}/py-numpy/options
-
 USES=		fortran python
-USE_PYTHON=	distutils autoplist
+USE_PYTHON=	distutils autoplist concurrent
 
 OPTIONS_DEFINE=	ATLAS DOCS SUITESPARSE
 OPTIONS_DEFAULT=SUITESPARSE