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
ERT-542: Added check with raise KeyError before calling c function iget_name_kw().
ERT-542: Added __len__() method to ecl_sum - returning the number of timesteps.
ERT-542: Added count() method on IntVector.
ERT-542: Protecting the initialization process against missing report steps.
ERT-437: Added install target for rml module.
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
Update test_sum.py