Merge pull request #135 from joakim-hove/master

Renamed name of test work area
Merge pull request #136 from joakim-hove/master

Use config_file argument as name for test work area
Added O2 flag that I accidentally removed a while ago
Changed test for NFS_RUNPATH, did not quite work
Merge pull request #137 from joakim-hove/master

Made ecl_file test use test_work_area
Change ecl_fortio test to use test_work_area
Added function test_work_area_get_original_cwd()
Changed test config_path_elm to use test_work_area
Changed test job_torque_test to use test_work_area
Changed test enkf_runpath_list to use test_work_area
Changed test enkf_time_map to use test_work_area