Merge pull request #52 from jzvelc/master

Server side code refactor, updated with latest meanstack framework.
Added editing of sections, articles and issues
Merge pull request #54 from mancabizjak/backend-updating

Added editing of sections, articles and issues
Editable yournal seetings
removed some files
Merge pull request #55 from jani-bevk/settings

Editable yournal seetings