[calligra] Work around Sailfish giving us the UI font as default font (not so useful for spreadsheets)
[calligra] Adds a little less blocking behaviour (smoother feedback)
[update] Update to Calligra Qt5 branch HEAD
Squashed 'calligra/' changes from 413dd65..1734633

1734633 Add missing enum entry (warnings--)
e89e48f components: Fix Global::documentType return type so it actually works from QML
186a0a0 Don't fail loading a file when the comments fail to load
8abb376 Have only one mimetype variable

git-subtree-dir: calligra
git-subtree-split: 1734633ef96f04c788e98cd1443f26d2a89cd5b5
Merge commit '72f4f1e9a189d38d4705ff8592b6a669e96c94bd'