Git commits in Moodle 2.4.8 by Eloy Lafuente (stronk7)

commit a4a01b4b96946ef020b200c4e49362b9a805cfa3
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Fri, 10 Jan 2014 08:03:23 +0800
Tag:    v2.4.8

MDL-36721 make upgrade queries cross-db

commit 4226a54d534256055f8533d4bce028bbb5c89d55
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Thu, 19 Dec 2013 09:15:51 +0800
Tag:    v2.4.8

Revert "MDL-43306 restore: fix grade item sortorder restoration"

commit 9a5af1492900c33de0f055bdd757f81f1360d733
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Thu, 12 Dec 2013 09:03:41 +0800
Tag:    v2.4.8

MDL-31410 paypal: fix problem on notifications

commit a61d4eff50879c21a83e1a09fd95318f0d27e43d
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Fri, 22 Nov 2013 02:33:30 +0800
Tag:    v2.4.8

weekly release 2.4.7+

commit 9f887be6a6ad152e1872c705e609524b4d34d100
Author: Eloy Lafuente (stronk7) <stronk7@moodle.org>
Date:   Fri, 15 Nov 2013 18:14:49 +0800
Tag:    v2.4.8

weekly release 2.4.7+