[QBS] Heads up: "install" command

[Christian Kandeler]

Hi,

as you may know, support for installing files has been somewhat 
rudimentary in qbs: First of all, there was no way to install build 
results such as executables or libraries. Also, installation happened 
during the build process, which meant you could not, for instance, build 
your project as a normal user and install it as a privileged one.
Both of these issues have now been addressed in commits f857a29b and 
5cdf94de, which introduce a new  syntax for expressing installation of 
files and add a new command "qbs install". Please see the documentation 
part of the latter commit and the in-process help for details.


Christian