Default path is taken from local for SSH resources

[fernanqv]

If parameter scratch is not set in the SSH resource definition, drm4g will use the $HOME of the user who is running drm4g as the default remote directory. Usually this path do not exists and the remote resource can't be used.

[cofinoa]

This issue relates with:

DRM4G/drm4g/communicators/__init__.py

Line 45 in 1a7a23d

self.work_directory = REMOTE_JOBS_DIR

and

DRM4G/drm4g/core/configure.py

Line 249 in 1a7a23d

com_object.work_directory = resdict.get( 'scratch', REMOTE_JOBS_DIR )

This needs to be refactored