Rename RemoveStarSequences to RemoveUnknownSequences
only allow 20 known amino acids
Code improvements

- Use + instead of * in the regex so as to not allow empty strings
- Emmit a warning message if a sequence is being filtered
use Genome::Info::CodonToAminoAcid to get list of valid amino acids instead of hardcoding them
create regular expression only once
fixed typos
show rename info
add identifier
handle undefined sequence string
preserve encapsulation
add test to make sure CopyCat failures are caught
alter error handling to pass through errors to exit code, and also alter traceback command to actually print traceback
Merge pull request #104 from ernfrid/quit_eating_errors_copycat

Quit eating errors copycat
Merge pull request #101 from nnutter/check-for-name-updates

show rename info
add gmt bam-qc summarize-instrument-data
Merge pull request #96 from susannasiebert/epitope_prediction

Filter out sequences that contain unknown amino acids
fix package name