Add tests
update tests
[#64] Remove lookup argument in put_variable
[#64] Prepare cdb class with new code
[#64] Update put_variable, not finished yet
[#64] Updated put/get_variable and tests
[#64] Fix merge conflict
[#64] Minor refactor of test code
[#64] Remove keys/values from lookup table
[#65] Move put_lookup to class
[#65] Move get_lookup to class
[#65] Add .self to methods
[#65] Variable renaming
[#65] Fix merge conflicts
[#65] Add error message on variable length dismatch
[#65] Add error message on variable length dismatch
Merge pull request #65 from SwedishPensionsAgency/issue-64

Issue 64