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 709a2cfbaa27f125935993afc80f335bb2d731eb,51a1b05b06b7e7077d7b61d8d00516e13dd82592..99737058550e445e9e1787c672ce594a6d8f051c
--- 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;