Git commits in Moodle 2.3.0 by Ashley Holman

commit 588605efa6c4e82f7a28fab55bfda642534486e3
Author: Ashley Holman <ashley@netspot.com.au>
Date:   Thu, 07 Apr 2011 17:06:43 +0800
Tag:    v2.3.0-beta

MDL-27120 Add global cache to backup_xml_transformer::register_link_encoders()

commit d729ef29cf009dd4a0ce9ee5b4fcde6380926a6c
Author: Ashley Holman <ashley@netspot.com.au>
Date:   Thu, 07 Apr 2011 17:06:43 +0800
Tag:    v2.3.0-beta

MDL-27120 Add global cache to backup_xml_transformer::register_link_encoders()

commit 01ab87feda2946bb6ce52bdf4084a3af0a83872a
Author: Ashley Holman <ashley@netspot.com.au>
Date:   Thu, 07 Apr 2011 14:08:10 +0800
Tag:    v2.3.0-beta

MDL-27120 More efficient use of QuickForms in backup UI

commit 631764ea2f47c1a1a4045517572800eb2e3fd37d
Author: Ashley Holman <ashley@netspot.com.au>
Date:   Thu, 07 Apr 2011 14:08:10 +0800
Tag:    v2.3.0-beta

MDL-27120 More efficient use of QuickForms in backup UI

commit 9e4b9a00cc1b1ceb8ca5314b9c9cac71e2a3944d
Author: Ashley Holman <ashley@netspot.com.au>
Date:   Thu, 07 Apr 2011 12:46:07 +0800
Tag:    v2.3.0-beta

MDL-27120 backup: replace sequential scan search with hash-based lookup.

commit f213bbd77a0ec89e8ddf223d6cd6db9aa1bee37f
Author: Ashley Holman <ashley@netspot.com.au>
Date:   Thu, 07 Apr 2011 12:46:07 +0800
Tag:    v2.3.0-beta

MDL-27120 backup: replace sequential scan search with hash-based lookup.