Test any_agent chrooting with the full y2base (boo#903747).

It only works after installation because of the overcomplicated linking
and  path searches.
ignore `compile` from automake-1.14.1
Added a forgotten targetPath (boo#903747).

Respect target root also when the file
does not exist in the original root.

The bug manifested during upgrade of 13.1 to 13.2:
  Internal error. ...
  Caller: /mounts/mp_0001/usr/share/YaST2/modules/Kernel.rb:626:in `block in SaveModulesToLoad'
version + changelog
Enable running the test before installation.
y2base.sh: made more readable
Merge pull request #90 from yast/any-agent-target-root

ag_any: respect target root also when the file does not exist in the original root