Workflows for FMU: ranking of realizations
Added const to argument
 Names changed
Removed check
Fixed typing error in workflow job
Added test case
Added EXPORT_RANKING workflow, and removed file write from EXPORT_RANKING and OBSERVATION_RANKING  workflows. Also changed step parameters for OBSERVATION_RANKING workflow to take a range and/or comma-separated list
Making sure that we do not recalculate the misfit table unconditionally
Added job INIT_MISFIT_TABLE
Removed unused variables
Fixed programming error in enkf_tui_ranking.c: Forgot to init char *
Added const to int_vector_type * steps variable
Moved include to proper place in include list
Added const to argument
ERT-500 - Load GEN_DATA
Changed iactive allocation.
Remved if (iactive) {} switch; the iactive pointer can NOT be NULL.
state_map_fread() returns bool instead of void.
StateMap will raise IOError if the load fails.
Class StateMap can optionally take filename __init__() argument.