ERT-511: Init case from existing: updated state map
Removed state_map_copy_states method, updating state_map in enkf_main_copy_ensemble instead. Added call to enkf_fs_fsync
Merge pull request #402 from joakim-hove/ERT-437-unify-rml

ERT-437: Added install target for rml module.
Merge pull request #403 from joakim-hove/ERT-542-python-bugs

Ert 542 python bugs
Merge pull request #401 from chflo/ERT_511_init_case_update_state_map

Ert 511 init case update state map
Reduced digits in test comparison
CHanged to use scaled comparison in test
Added (empty) test for function ecl_grid_cell_contains.
Added const qualifier to function.
Added test code to run loop through all get_ijk / get_xyz combinations.
Exported tetrahedron based volume calculation.
Added test for comparison of two different volume calculations.
Added more debug code for tetrahedron debugging.
Added coordinates for broken cell with wrong volume.
Create problematic cell.
Corrected tetrahedron decomposition so volume calculations work also with quirky cells; tetrahedron volume calculation is signed.
Cosmetic changes.
More debugging.
TRying alternative method for calculation central depth.
Added simple point_equal() function for absolute equality.