[update] Upcate to Calligra Qt5 HEAD
Squashed 'calligra/' changes from bbad116..d8ccd51

d8ccd51 Warn when we can't find a plugin to determine the document type in Global
8b72712 MimeType is semicolon separated, not comma.
f5a1585 Make sure the KoJsonTrader also looks for mimetypes as provided by filters.

git-subtree-dir: calligra
git-subtree-split: d8ccd512b466dcbb0d60e8adda1cf0d4d8c8c542
Merge commit '0472cba25349d24b8fb33b88bee76443e7af9389'