[update] Upcate to Calligra Qt5 HEAD
Squashed 'calligra/' changes from a2c6bf4..204f4f0

204f4f0 Add a test of the LinkArea to the QML Viewer example
ea627a9 Add the actual link fetching and url spotting to the document type implementations
761f039 Add a method for activating the URLs to documents. Needed by LinkArea
df3aa76 Add a LinkArea so we can activate links found in the documents

git-subtree-dir: calligra
git-subtree-split: 204f4f078e017808dd8d1d292da65bf77b64c6d1
Merge commit 'd86e12add73569e9bc9536ad59314becc278eb9f'