Sync from github:

2910c554 list_number was renmaed to list_integer.
d4b82e15 Check db_field_exists.
0b135fc8 Fix wrong assertion of upgrade path -- all working now.
fd15e942 Add a workaround to load entity classes, as for some reason they stopped
451efcce Fix global roles not created on module install, and add a test assertion
d99cf55b Remove redunent and unused class.
4b52d514 EntiyDB calss is now called Entity.
c1e48132 Remove un-needed files[] from .info
f1a75918 Fix a failing test, as og_enabled() became to strict.
55ce70a4 More codning standarts fixes on script.
234cc7f8 Assert the OG6 scenario. there are still 2 fails, related to the resutls
814cbd0e Add the scenario trascript to the script.
3db2f8c0 Tests still don't pass, but upgrade happens, by not allowing to upgrade
79a64d16 Had to enable comments and taxonomy module in D6 for the upgrade path to
4177f1aa Disable OG moduel in D6.
68e59e11 Add dblog module, as it doesn't work otherwise.
96cd7b49 Add drupal-6 dump to be used in upgrade path tests.
b8ce0114 Add missing scenario.
e5c7d626 Fix coding standarts.
68209eab Merge remote branch 'yakoub/master' into upgrade-test
1988b3f2 follow up #1001376 by sven.lauer, Amitaibu: Added og_views_field_formatt
d4725ba3 by yakkoub: Add script to generate D6 database with OG content.