remove unused extension RebuildLocalisationCacheTask
Revert "remove unused extension RebuildLocalisationCacheTask"

This reverts commit 28be65d0b0d1122da847d062aceba07d7ddebcfd.
Merge remote-tracking branch 'origin/dev' into jobqueue-migration
fixing exception message
Merge remote-tracking branch 'origin/dev' into jobqueue-migration
PLATFORM-75 Make TaskRunner aware of the task ID

For longer-running tasks, a timeout somewhere between application/dev
boxes and the celery workers can cause the task status to become
"failed" when it could simply be running longer. Passing the task ID
along to the runner will enable it to communicate back to Flower that
the task actually did complete successfully.
PLATFORM-75 Notify Flower when a task completes

In case Celery times out, ping out to Flower to record the actual result
of the task.
PLATFORM-75 Use GuzzleHttp for REST calls

An easy-to-use/robust HTTP client will be useful at the platform moves
to a service oriented architecture. Use GuzzleHttp for the Flower
long-task pingback.
Merge pull request #3751 from Wikia/jobqueue-migration-taskid

Make tasks aware of their own ID
MultiEdit & MultiDelete tasks
WikiFactory: do not cache axWFactoryGetVariable responses
fix some bugs in the task list and hook, remove unnecessary hook
PLA-1532/ PLA-1531 Entertainment and Lifestyle feeds to new architecture. Fixed images from hubs.
PLA-1532/ PLA-1531 bug fix
PLA-1532/ PLA-1531 code formatting
PLA-1532/ PLA-1531 code formatting
PLA-1532/ PLA-1531 code cleanup
code cleanup
PLA-1532 missing image from wikiaspicks
PLA-1532 missing image from wikiaspicks - unittest