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
Added utility functions to return only name or only dirname of input path
Added function test_work_area_copy_file()
ecl_file testing will use test_work_area
Merge pull request #137 from joakim-hove/master

Made ecl_file test use test_work_area
Merge branch 'master' into version-1.2