[windup-dev] Let's use relative paths

[Ondrej Zizka]

Hi,

I suggest we use relative paths.
For the reports, using full paths may get overly verbose and make the 
reports unreadable.
Relative paths are usually not, that much.
Compare e.g.:

      INFO: Unzipping 
/home/ondra/work/Migration/Windup/tests/core/target/../../../test-files/Windup1x-javaee-example.war 
to 
/home/ondra/work/Migration/Windup/tests/core/target/windupreport/archives/Windup1x-javaee-example.war

vs.

     INFO: Unzipping ../../../test-files/Windup1x-javaee-example.war to 
windupreport/archives/Windup1x-javaee-example.war

The base path may be stated just once somewhere else.

 From my experience, using relative paths may get tricky, needing to 
carry the base path(s) along with the relative, but still, is worth the 
work.

my2c,
Ondra