changed order of requirements in _docs/utilities/requirements.txt
#557 Fixed
small indentation fix
#528 Fixed
Removing obslete lines and indentation fixes
Cache fixes and omnipresent moderator indicator and first draft of pending sounds page and indicator

Related to both issues #558 and #528
Fixed #558

Call to action for users on pending sound pages, when they should reply
back on a sound ticket.
Show message when there isn't any pending sounds
Deleted accidentally merge file from sergio branch
Merge remote-tracking branch 'origin/nuno'

Conflicts:
	tickets/views.py
Merging with nuno branch and refactoring some code
Updated moderation guide and moderators link in top bar
Refactorings in uploaded sounds waiting for moderation page
Some more small refactoings in upload screen notifications and sounds awaiting moderation page