0.3.0

0.3.0

Version 0.3.0 may give different results to previous versions. If so,
the differences will likely be a handful of extra reads (possibly none).
The reason for this is --coverage is now treated as a float.
Previously we immediately round coverage down to the nearest integer. As
the number of reads to keep is based on the target total number of
bases, which is coverage * genome size. So if coverage is 10.7 and
genome size is 100, previously our target number of bases would have
been 1000, whereas now, it would be 1070.

Changed

• --coverage is now treated as a f32 instead of being converted
  immediately to an integer #19.
• Updated rust-bio to version 0.31.0. This means rasusa now handles
  wrapped fastq files.
• Preallocate fastx records instead of using iterator. Gives marginal
  speedup.
• Added bash to the docker image b47a8b7