Merge: Properly generated flag for intel/<compatibility>vc.

	* intel-win.jam (init): Strip 'vc' from the
	version passed to msvc.configure-verion-specific.
	* msvc.jam (configure-version-specific): Accept '6' and '7',
	not just 6.N and 7.N.


[SVN r35072]

tools/build

@@ -1 +1 @@
-Subproject commit 3a902f42cd42caaa9abaf28b8a0a5ae21dd60e9d
+Subproject commit 91ea5006c5deb112815969a58782c79b5b4c94fc