MDL-22787 MNet remote enrolment services upgraded

In my testing environment, I am able to enrol and unenrol both 2.0 <-> 2.0 and
1.9 <-> 2.0 peers. The changes are pretty significant, though, including DB schema
change.

version.php

@@ -6,7 +6,7 @@
 // This is compared against the values stored in the database to determine
 // whether upgrades should be performed (see lib/db/*.php)
 
-    $version = 2010071700;  // YYYYMMDD   = date of the last version bump
+    $version = 2010071701;  // YYYYMMDD   = date of the last version bump
                             //         XX = daily increments
 
     $release = '2.0 Preview 4+ (Build: 20100717)';  // Human-friendly version name