Added support for region_2_region
Corrected mistakes from previous commit, labeled region_2_region_test with label StatoilData
Made changes after code-review: Now using method ecl_sum_fread_alloc_case(...) to read test files. Also made changes in style to follow coding standard for ERT
Merge pull request #111 from chflo/region_2_region

Region 2 region
Merge branch 'master' into version-1.2