v0.5.0

• coordinates with start > end can be auto reverse complemented using --auto-strand argument (#120)
• --no-coords flag in faidx script suppresses "sequence:start-end" in output sequence headers (#121)
• Sequence.long_name is deprecated in favor of Sequence.fancy_name. Sequence.longname() is now removed from the codebase after previous DeprecationWarnings.