Pass BiocCheck in Travis CI

[kjohnsen]

• [ ] Remove files over 5MB
• [ ] Vignette (#8, #62)
• [x] biocViews
• [ ] vapply
• [ ] remove T and F
• [ ]WARNING: Import grDevices, graphics, stats, utils in DESCRIPTION as well as NAMESPACE.
• [ ] WARNING: Add non-empty \value sections to the following man pages: man/MmapprDataGetters.Rd, man/MmapprParam-functions.Rd
• [ ] ERROR: At least 80% of man pages documenting exported objects must have runnable examples. The following pages do not: calculateDistance.Rd, generateCandidates.Rd, loessFit.Rd, mmappr.Rd, MmapprDataGetters.Rd, MmapprParam-functions.Rd,
• [ ] 80 character lines

[kjohnsen]

Get rid of all errors and warnings