Moved the check to exclude directories in make_swig_makefile to after the
test to see if we should expect them. This way we will write the code we are
expecting even though we will not be generating the code itself.
refs #163
We were using md5_hex to generate a unique file id from a full path
filename. Changed this to use the file device and inode id instead.
Should still provide unique file ids and the file names are shorter
too.
Fixes#29
Changed all header file once include variables to follow the same naming
convention and not start with any underscores. Also deleted old
incorrect copyright notices. Also removed $Id: tags from all files.
Fixes#14. Fixes#22.
