[wip/sot-core-v3] Update to version 3.1.7

Improves IntegratorEuler, makes a vector version and
adds an abstract integrator.

sot-core-v3/Makefile

@@ -4,7 +4,7 @@
 
 PKGNAME=		sot-core-v3-${VERSION}
 DISTNAME=		sot-core-v3-${VERSION}
-VERSION=		3.1.6
+VERSION=		3.1.7
 
 MASTER_SITES=		${MASTER_SITE_OPENROBOTS:=sot-core-v3/}
 MASTER_REPOSITORY=	${MASTER_REPOSITORY_GITHUB}/stack-of-tasks/sot-core

sot-core-v3/distinfo

-SHA1 (sot-core-v3-3.1.6.tar.gz) = de446d43ab73627bd96f172d5093b83325812e26
-RMD160 (sot-core-v3-3.1.6.tar.gz) = ea0ab6d226ff9447f30f62c16a940d77b2b41e0c
-Size (sot-core-v3-3.1.6.tar.gz) = 1036386 bytes
+SHA1 (sot-core-v3-3.1.7.tar.gz) = 480f019181bd0f68989e8886c8fcad3bd589740e
+RMD160 (sot-core-v3-3.1.7.tar.gz) = 50f5b5160ffe5ae2aba90c0156d07b8e96dfbd8b
+Size (sot-core-v3-3.1.7.tar.gz) = 1042229 bytes