setup with experimental libsolv-based dependency solving

[Ken Brown]

On 10/25/2017 3:18 PM, Jon Turney wrote:
> 
> This has a lot of internal changes, so could use some wider testing. 
> Please test.

I've just discovered a serious bug.  When installing from a local 
directory that either doesn't exist or isn't a valid repository, setup 
doesn't correctly read/write the installed file database 
(/etc/setup/installed.db).

Until we get this fixed, please backup installed.db before running setup 
(or just don't proceed with the installation if setup doesn't correctly 
show your installed packages).

Ken