CI job/tasks fix and refactoring

CI: new auth for list all jobs

Getting status of jobs

Fixed CI get rspec status

Comment to the ci tasks

CI: query_all_success uses auth; refactorings

Refactored error handling and logging of ci tasks

Refactored Aggregation job, fixed rspece query

logging something when job created

Added exit 0

Usind dedicated template for tasks

wip
WIP ZencoderJob squashed
Created ZenconderJob model

wip

wip building zencoder requests seems to work

wip

wip ZencoderJob will be created for media_file

Added MediaFile and ZencoderJob to AdminPanel

Saving request

comment

some TODO notes

wip zencoder refactored