If the summary widget is large, it gets a scrollbar. This looks really
weird, so prefer to grow the installer window instead. Discussed with
@sitter and settled on this solution.
ViewSteps can signal the ViewManager that they need more space (in pixels),
which may or may not be honored.
FIXES#778
In order to avoid deep copies, Qt containers over which we iterate must be const
The remaining unported cases require qAsConst (Qt 5.7) or std::as_const (C++17)
Module descriptors are now module.desc, no configuration allowed inside.
Module config files are <modulename>.conf, installed in
share/calamares/modules.
settings.conf is read from /etc/calamares, then share/calamares, and if
running with --debug also in the current dir.
Module config files are read from /etc/calamares/modules, then
share/calamares/modules, and if running with --debug also in
src/modules/<modulename> relative to the current dir.
