Update README with comments about licensing.

Add ldaptcl to list of packages.
Add URL to OpenLDAP ITS web page.

contrib/README

 LDAP contrib README
+then: then/endif not found.
 
-Contributed code lives underneath this contrib directory.  It is not as
-well-integrated into the LDAP build process as the rest of the LDAP
-distribution.  Please see the README files in each contrib subdirectory
-for build instructions.
+Contributed packages lives underneath this contrib directory.  It
+is not as well-integrated into the LDAP build process as the rest
+of the LDAP distribution.  Please see the README files in each
+contrib subdirectory for build instructions.
+
+Contributed packages may have different use and restribution
+restrictions than OpenLDAP software.  Please consult each
+packages documentation.
 
 Current contributions:
 
@@ -12,6 +17,8 @@ Current contributions:
 		Contributed by Eric Rosenquist.  See saucer/README
 		and its man page for more information.
 
+	ldaptcl	TCL LDAP API
+
     web500gw	HTTP gateway for X.500, modeled after go500gw.
 		Contributed by Frank Richter.  See web500gw/README
 		for more information.
@@ -20,4 +27,6 @@ Current contributions:
 		See whois++/README for more information.
 
 
-Please send your contributions to ldap-support@umich.edu
+Please submit your contributions using the OpenLDAP Issue
+Tracking System (http://www.openldap.org/its/).  For
+information contact <info@OpenLDAP.Org>.