More URL checking in inspect. Now parses the URL and checks a few extra things.

Merged revision 45832 via svnmerge from https://svn.boost.org/svn/boost/trunk


[SVN r46469]

tools/inspect

@@ -1 +1 @@
-Subproject commit 82f0863b787eee4e9815293e0f2006f8c839cf1f
+Subproject commit 334fcd6ec6f0c709bab1c3b637de703085365f48