bugfix release

this release is mostly bugfixes for edge-cases.

v0.0.8

• use random file names so concurrent slivar processes don't clobber files.
• more informative error on bad js expression
• fix for empty groups (#20)
• fix bug when later expressions depended on previous ones.

There are 2 binaries for this release. Both are 64bit linux binaries.

• slivar_static is a completely static binary. you can download it and use it without any other software.
• slivar_shared depends on a libhts.so. it has the advantage of allowing access to files on s3 or https if that is needed.

users can also use slivar via docker at brentp/slivar:v0.0.8

the gnotation files for fast annotation remain unchanged.
Users can create their own gnotation files with slivar make-gnotate, but we provide:

• gnomad for hg37 with AF popmax, numhomalts (total and controls only) here
• gnomad for hg38 with AF popmax, numhomalts (total and controls only) here
• spliceai scores (maximum value of the 4 scores in spliceai) here