[update] Upcate to Calligra Qt5 HEAD
Squashed 'calligra/' changes from c330308..a2c6bf4

a2c6bf4 Optimize splitToRowAndColumn by not creating so many temporary qstrings
349c471 components: Improve view positioning after zoom timeout in ViewController

git-subtree-dir: calligra
git-subtree-split: a2c6bf4c0c98465a0afe88bd882e3cee7afe4696
Merge commit 'e78d06b3c76399006e36391b318a3d7efe2f0f01'