Fix paths

Make paths relative instead of absolute
Add info to README about how to run and add missing main_.cpp
Remove 'copyright 2007, all rights reserved' lines

Now licensed under GPLv3
Fix style and a bug

Fix close of IsDetected in DetHisparc.cpp.
The closing bracket was in the comments.
Currently it does not return anything,
but at least it is properly closed.
Replace tabs by 4 spaces.
Fix some indentations.