Security fix: statuses with visibility marked unlisted, private, and direct could be displayed publicly

security fix: statuses with visibility marked unlisted, private, and direct could be displayed publicly

Fix: more consistent styling in mastodon

* feature/emoji:
  Hide pixelfed widget when oauth fails
  Add emoji support

# Conflicts:
#	fediembedi-mastodon-widget.php
#	templates/mastodon.tpl.php
#	templates/pixelfed.tpl.php

Delete widget options on uninstall

Reorganized file structure