Adapted to Qt package renaming.
nacl-sdk: bumped to version 25.
Updated *-git packages to support Pacman 4.1 package version bumping.

On the other hand I'm _not_ using the new way to handle Git
repositories, as it makes it impossible to do incremental builds. And I
don't wanna spend 2 hours a day recompiling all the packages that took
mere 20 minutes before.
Adopted kdevelop-*-git packages.
Cleaned up KDE *-git packages.
Updated and fixed all recently adopted kdevelop-*-git packages.
Adopted and fixed kdevelop-python-git package.
Adopted and fixed kdevelop-controlflowgraph-git package.