Fix array dimensions of movie volumes.

ifort will complain about dummy arguments larger than actual arguments
if these are not correct.
Merge pull request #133 from QuLogic/fix-ifort

Fix ifort compiles
Fix make clean from subdirectories.

When the CLEAN variable is defined, it means that `make clean' was run
from a subdirectory. Only the files related to that directory should be
removed, so the wildcard is no good.
Remove backup target.

There are several git-builtin ways to achieve a backup, and they're much
better since you can actually document what you're doing.
Correct license in several files.