Merge pull request #108 from RagnarHauge/master

CRA-698: Make test suite run on windows
Merge pull request #109 from RagnarHauge/master

CRA-698: Add two files forgotten in previous commit
CRA-702: Introduced a more general EBCDIC header detection. Checks that no codes below 64 are used, and that code 64, space, is the most common.
Merge branch 'CRA-702'