moved versions controller test to specs

- added spec for opf # 528
[opf #528] fixes create version in issue#new view
Merge branch 'feature/rails3_fix_version_new_on_issue_new' into feature/rails3
Revert "don't render absolute attachment links, it's not necessary and breaks on tests"

This reverts commit cdcc3102d22dfd9af49af748ed8242bb69cd3b2f.