BAC-770: imageServing.php helper script

Show the final list of images as well (after filers being applied)
Style fixes
Merge pull request #1856 from Wikia/bac-770-image-serving-mime-blacklist

BAC-770: add MIME blacklist to ImageServing
DAR-2604, add title to alt link modal variable
DAR-2604, add title to alt link modal variable
BAC-1082: log failed Swift ACL requests
CF_Http: even more verbose logging
(CE-53) Add CoppaImageReview special page
(CE-53) Add CoppaImageReview link to CoppaTool
BAC-982 Make sure that conversion to pixels happens only for unitless values
Merge pull request #2155 from Wikia/BAC-982

BAC-982 Fixing SASS errors
PLA-897 / PLA-949  Changing URL in 'contentUrl' and 'url'
property according to hostname.
DAR-2923: Removed checking wgEnableWikiaPageExt and wgLanguageCode
DAR-2604: modals - rejecting the deferred cancels event
DAR-2604: modal - separate unit test suite for events
DAR-2604: modal - basic tests for triggering events
DAR-2604: modal - tests for multiple listeners
DAR-2604: modal - test for deferred listeners
DAR-1159 fix whitespacing
DAR-2604: modal - test for cancelling events