Added function ecl_config_has_init_section()
Will disable enkf option if not INIT_SECTION is set
ecl_config will accept; but not set - an init_section pointing to a nonexisting filename (with a path)
Merge remote-tracking branch 'upstream/master'
Renamed analysis_config_alloc_default() -> analysis_config_alloc()
Added min_realisations as attribute to analysis_config
Added default value for analysis_config->min_realisations
Added MIN_REALISATIONS config element
Merged with master
Added state_map_count_matching()
Stop assimliation & update if too few realisations are alive
Changed error message for nr. realisations below minimum
Updated documentation
Simplified(?) login in analysis_config_have_enough_realisations()
Added missing test source
Merge pull request #164 from joakim-hove/min-realisations

Set a minimum number of realistaions: stop assimilation and update if too few