Install files in the right places

These commits adjust the paths and the POM file for installing everything in the right places, and getting the correct RPMs generated.

I don't know how this will behave under Solaris, though.  My idea for Solaris would be:

* Update the parent build-profile POM (in quattor/maven-tools), and have a Solaris-specific profile.
* Declare all the PKG/solaris-related packaging in that profile.
* Check what needs to be adjusted Between Linux and Solaris POMs.