This package contains several CMake files used for setting up its
provided tools for use in other projects build with CMake.
While packaging *ktouch* I found out that the ${_qt5Core_install_prefix}
variable doesn't expand at all, rendering the path to the `qmlcachegen`
binary useless. As a fix, the command itself is used instead of the path
to the binary.
This is the first time since 5.9 that we also update `qtwebkit`.
`qtwebkit` is not maintained by Qt anymore and thus, we switch to the
community port as for example arch has done. To prevent pulling in
single patches, we just stick to the latest git version.