rewrite FixVisualizationImage script
remove inline comments
old code removal
address review comments
refactor execute to fix more bugs in the system
use promo image to pass data
maintenance script doctorate
use more specific check if image really exists in the database
fix wrong filename check
proper target file exists check
preapprove images
Merge pull request #3727 from Wikia/PLA-1504-missing-promote-images

PLA-1504 rewrite FixVisualizationImage script (wip)