~/Documents/projects/prawn(master) $ git log origin/master..bradediger/transactional-rendering
commit 7f7d16a125d6ae89ab5e4001ec7c8421bd76cfc9
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 17:13:51 2009 -0500

    Added rollback method to simplify the transaction API

commit 006601d5a91d9f6375ebfcc3c58a3809a7d745ed
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 17:07:23 2009 -0500

    Specified multi-page rollback, and it magically works

commit 8008eebae9de2d7f2f6cc5ee72ee9168f1d334d2
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 17:03:44 2009 -0500

    Remove unnecessary level of spec nesting

commit 66c9697371e680cb578f8199c447ec9647b6ff11
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 16:47:17 2009 -0500

    Added spec for group_on_block; references per-page string changes to pdf-inspector

commit 3add7416d17f1a78f77bd6c4d22141495a1ba55d
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 16:33:37 2009 -0500

    Added specs for document snapshots - transactions

commit d1cf4b247ee884b5eacc620ed8df85536550174e
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 14:18:57 2009 -0500

    Specified ref and ref\!

commit 81ff89e47415b143ef5ab4aa5485d59081839519
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 14:06:01 2009 -0500

    Replaced update_ref() with Reference#replace()

commit 96e6f733496a539059fa9944bc51699983da4245
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 14:04:28 2009 -0500

    Specced and implemented Prawn::Reference#replace

commit e67a56164388e97e09b0043e3b9d95c0b64caa60
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 13:49:15 2009 -0500

    Documented transactional drawing

commit be3fbcbfb5f81241fb5e30396a2695c0c062ea4d
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 13:40:26 2009 -0500

    Added specs for Prawn::ObjectStore

commit df8f932641e1d5cea4d27593ba4edd969fa4a161
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 12:24:42 2009 -0500

    Moved Prawn::Snapshot to Prawn::Document::Snapshot; include it as a module rather than reopening Prawn::Document

commit 466230dec0e0ff41f099049a93122f5ecf9430c9
Author: Brad Ediger <brad.ediger@madriska.com>
Date:   Sun Aug 30 12:15:47 2009 -0500

    Added copyright headers and encoding pragmas for object_store.rb and snapshot.rb