BAC-215: move ImageServing related code to one directory
BAC-215: fix indexing of images in galleries
BAC-215: add test case covering previous commit (images in galleries prefixed with namespace)
Merge branch 'dev' into bac-215-image-serving-issues
BAC-215: always run maintenance script in dry-run mode
BAC-215: extra comments for $dry-run param + make this test an integration test
Merge pull request #830 from Wikia/bac-215-image-serving-issues

BAC-215: ImageServing issues with galleries