Make verson parameter to intel-linux.init optional. New rules common.find-tool

and common.check-tool to help autodetect toolsets.


[SVN r23136]

tools/build

@@ -1 +1 @@
-Subproject commit 32d38a05c0ca9a728dc843247e92478a0a5d5d67
+Subproject commit 7456dda1992b9c449119b9d76b5f1cf6f6c8a239