small change in input.f90 to allow use of debugger
Do not (yet) use UPF format to write PPs in restart file:
other types of PP will not work
Example added, example documentation and PP in UPF format updated
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@19 c92efa57-630b-4861-b058-cf58834340f0