* tclconfig/tcl.m4, generic/vfs.c, doc/vfs.n:

	* tclconfig/tcl.m4, generic/vfs.c, doc/vfs.n:
	* configure, configure.in: update to TEA 3.7, bump vfs to v1.4

	* pkgIndex.tcl.in: this is now the sole pkgIndex.tcl script.
	vfs::loadvfs updated to source vfsUtils.tcl right after loading
	the dll.  Package versions updated, removed mk4vfs and zipvfs
	compat packages.

	* Makefile.in, win/makefile.vc: update for removed files

	* library/template/*: add package provide 1.5.2 for each template

	* library/mk4vfscompat.tcl (removed): remove old compat pkg
	* library/zipvfscompat.tcl (removed): remove old compat pkg

	* library/tclIndex (removed): users should package require the
	appropriate driver, not rely on autoload
	* library/pkgIndex.tcl (removed): impotent index files
	* library/template/pkgIndex.tcl (removed):