Merge pull request #9963 from mexon/mat/support-cid-scheme

Support cid URLs as used in mailstream plugin

diff --cc src/Content/Text/BBCode.php
index 709a2cf,51a1b05..9973705
--- 1/src/Content/Text/BBCode.php
--- 2/src/Content/Text/BBCode.php
+++ b/src/Content/Text/BBCode.php
@@@ -27,8 -27,8 +27,9 @@@ use Exception
  use Friendica\Content\ContactSelector;
  use Friendica\Content\Item;
  use Friendica\Content\OEmbed;
 +use Friendica\Content\PageInfo;
  use Friendica\Content\Smilies;
+ use Friendica\Content\Text\HTMLPurifier_URIScheme_cid;
  use Friendica\Core\Hook;
  use Friendica\Core\Logger;
  use Friendica\Core\Protocol;