Merge pull request #53 from robdennis/master

fixes #52 - tagged 5.0.4
fixes #55
bumping version numbers to 5.0.5
removed todo
clarifying issue associated with a test
Merge pull request #56 from robdennis/master

fixes #55 - can write out non-ascii characters to disk
typo correction / new build-image
Merge pull request #57 from DiffSK/master

release 5.0.5