Fixed latest issues

Seems now it is good. Done it with arc diff master. Don't know why simple arc diff last time didn't made the trick

In D235#5359, @deniskuplyakov wrote:

Non-const reference children() removed.
Tabs fixed.

Non-const reference children() removed.
Tabs fixed.

I've missed with Phabricator app for review. That commit was modified in D200 and pushed successfully. I will mark this as 'Accepted' to stop red '1' attracting my eyes on dashboard.

Still no reviews.... I know that everybody now is busy with code formatting / splitting repos and other important stuff, but I don't want my patch will be lost or need to be rewritten entirely. Can anybodu review, so I can push it before big changes?

Static_casts and 'if' moments are fixed in revision.

I've created a Revision, that thing seems more suitable for what we are doing.
Link: D200

I've made some changes in branch. But it was a bad decision to make a review process through Audit thing of my branch commits. I can't update diff here or move our dialog to another commit... What do you think is the best way to proceed? It will be really helpfull to have a Differential review that is automatically attached to a HEAD of the feature branch.

I've added some inline comments. And Vishesh from soprano-devel doesn't hurry to answer my emails. So now that plan seems to be reasonable:

1. Make Author RDF independent by disabling some features.
2. Adopt Soprano to Qt5 as you said.