SD-491: original creator is returned and also the new creator who makes revisions for an item
Merge pull request #177 from ancafarcas/Authors

SD-491: original creator is returned and also the new creator who makes ...
fix(planning): make use of elastic for planning
Merge pull request #179 from petrjasek/master

fix(planning): make use of elastic for planning
feat(file type) - add a file type for Eve schema, replace media so we have full control over the file upload
feat(user avatar) - generate renditions. SD-527
Merge pull request #181 from amagdas/avatar-renditions

Avatar renditions
Merge branch 'master' of github.com:superdesk/superdesk-server

Conflicts:
	app.py
	superdesk/activity.py
	superdesk/archive/archive_media.py