v0.3.0

Fixed

• Updated medaka to v1.4.3 for model pre-download.
• Work around issue where pyvcf writes QUAL values as '.' and not 0.

Changed

• Removed the autodetect sample_id option for now.
• Updated default model to be a variant calling one. Although labelled as
  PromethION specific (_prom in name), this model should be preferred
  on all platforms of non-variant (consensus) platform specific models.
• Derive software versions from CLI rather than conda list.

Added

• Field alias in sample sheet CSV serves as alternative to sample_name.
• Added V4 primerscheme to data directory.