ERT-552: Using util_mkdir_fopen() when writing surface files - to ensure that directories are created.
ERT-552: Added testing of geo_surface_fprintf().
ERT-549 - Magic strings substitution in paths in config files in IDE
ERT-549 - Added support for defines that refers to defines.
Merge remote-tracking branch 'upstream/master' into ERT-549
Test now works with larger enkf_fs_manager capacity.
Merge pull request #415 from joakim-hove/ERT-552-surface-create-directory

Ert 552 surface create directory
Merge pull request #419 from jepebe/ERT-549

ERT-549 - Magic strings substitution in paths in config files in IDE
Merge remote-tracking branch 'upstream/master' into ERT-341