CE-1125 Sandbox debugging
CE-1125 Debugging
CE-1125 Hook to UploadComplete with ImageReview event
CE-1125 Debugging
CE-1125 Remove debugging information
CE-1125 Log after assigning value
CE-1125 Send new versions of image to review
CE-1125 Refactor images counters

Reset counters when:
1. In Unreviewed queue
2. SQL select returns 0 images
3. Cached count of unreviewed > 0

Also removed redundant methods.
CE-1125 Delete invalid images from queue
CE-1125 Refactor old reviews reset
CE-1125 Add logging of failed deletions
Merge pull request #5516 from Wikia/CE-1125-image-review-fixes2

CE-1125 ImageReview fixes continuation