fix erroneous 'untrusted' msg based on validity not trust
RSSyl: do not use feed item's URL to populate an empty ID, it just confuses the comparing logic
Add some missing copyright
Fix memory leak in libravatar

Thanks Christian Hesse for the patch!
Fix copy paste error
RSSyl: during format update, copy also folder properties
RSSyl: handle expiring comments after their parent is gone
show owner trust in full info
indicate revoked UIDs
Use the slist_free_strings_full wrapper func.
Make INBOX case-insensitive (as RFC states), and add a check for a "Draft" folder when building folder tree. Fixes bug #3221, "Claws Mail has issues with Yahoo IMAP server/folders"
Add missing copyrights in tnef_parse plugin
Add license and copyright to 9b3fd2b5
highlight queue if there are msgs in its sub-folders and the tree is collapsed

as is done for the parent queue folder
RSSyl: fix memory leak in rssyl_deleted
RSSyl: make the libfeed parsers' FILL macro brace-safe. Thanks Colin!
RSSyl: make sure we do not operate with NULL text in libfeed parsers' end-handlers.
RSSyl: remove surplus semicolons from FILL macro use.
add plugin to display QR-Code for avatar