CLASS v2.1.7

• Fix more bugs that resulting in no report of transcripts after some chromosomes.

CLASS v2.1.6

• Add XS field if the aligner does not provide such information in BAM file.
• Handle non-canonical splice sites.
• Fix a bug for the untraditional chromosomes (i.e. chr14_GL000009v2_random,...)
• Automatically decide whether to ignore reads with different read length by default.