For example one can now say
-xmlXPath /fleurInput/cell/bulkLattice/\@scale=1.01
to scale the systems lattice by 1%

The issue was due to the reading of a c string into a fortran character array.
Up to now all 255 elements were read into the array and later the output
was reduced to the part in front of the c string termination null character.

Of course, this is wrong and valgrind complained. Everything after the string
termination character might not belong to the program. Therefore I fixed this.
But to my knowledge this issue never produced a problem.

For very simple test systems fleur can now use the inp.xml file
as an input. Note, however, that the functionality is still
very incomplete. Therefore, preliminary fleur has to be invoked
with -xmlInput to make use of inp.xml.

Besides the feature incompleteness it is expected that there are
still some bugs in loading inp.xml. So far it is
only tested for Si and Fe. For Fe a small deviation from the
reference total energy is observed (0.03 mHtr), the magnetic
moments are off by 0.003. The cause is yet unknown.