[mk] Factor out MASTER_SITE_GITHUB

hpp-geometry/Makefile

@@ -5,7 +5,7 @@
 HPP_PACKAGE=	        hpp-geometry
 HPP_VERSION=		1.0
 MASTER_SITES=		https://github.com/downloads/laas/hpp-geometry/
-MASTER_REPOSITORY=	${MASTER_REPOSITORY_GITHUB_LAAS}${HPP_PACKAGE}
+MASTER_REPOSITORY=	${MASTER_REPOSITORY_GITHUB}/laas/${HPP_PACKAGE}
 
 CATEGORIES=		devel
 HPP_COMMENT=		New KineoWorks(tm) geometric types

metapod/Makefile

@@ -9,8 +9,8 @@ PKGNAME=	        ${PKGBASE}-${VERSION}
 PKGREVISION=
 
 CATEGORIES=		math
-MASTER_SITES=		${MASTER_SITE_GITHUB_GEPETTO:=${PKGBASE}/}
-MASTER_REPOSITORY=	${MASTER_REPOSITORY_GITHUB_LAAS}${PKGBASE}
+MASTER_SITES=		${MASTER_SITE_GITHUB:=downloads/laas/${PKGBASE}/}
+MASTER_REPOSITORY=	${MASTER_REPOSITORY_GITHUB}/laas/${PKGBASE}
 
 COMMENT=		Template-based rigid body dynamics library.