QE to external codes (my fault). Reverted to previous state (with npot present
but unused) so that the API are still valid. Makefiles updated. (Axel)
In the future, the API version in COUPLE/include/libqecouple.h must be
increased every time an incompatible change is made.
git-svn-id: http://qeforge.qe-forge.org/svn/q-e/trunk/espresso@12476 c92efa57-630b-4861-b058-cf58834340f0
giannozz