BAC-929: script to migrate Wikis to new image backend
BAC-929: keep the progress of migration in migrateImagesToSwift.php script
BAC-929: commit changes in main migration script
BAC-929: fixed main query
BAC-929: list of wikis to test
BAC-929: fixed bug with table names
BAC-929: fetchRow => fetchObject
BAC-929: add conf to run_maintenance script
migrateWikisToSwift.php: set $wgMaxShellTime = 0
Merge pull request #1874 from Wikia/release-194-swift-migration

Release 194 swift migration