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Merge pull request #15 from ajdm/travisci

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Ensure path is expanded, as ff cannot cope otherwise
Merge pull request #18 from ajdm/fix/ff

Ensure path is expanded, as ff cannot cope otherwise
Improve docs for plot3dfc
update to roxygen2 v4
update annotation table

* includes some glomerular reassignments
Fix non-ascii chars in annotation data.frame