add bump to v 1.3.0 (#142)

* fixed broken --dpi option

* fixed broken --dpi option

* added option for control of annotation scaling

* improved efficiency of pass-through args

* spell check

* major reorg of the code for readability

* split tests for plot v vcf commands

* fixed name for new test

* added cleanup for files created during tests

* added cleanup for files created during tests

* added new tests for vcf

* Update README.md

* tweaked the help output

* Update README.md

* version bump

* version bump again

Merge pull request #135 from jbelyeu/master

allow csi index for annotation files

Merge pull request #112 from jbelyeu/master

allow alignment file indices with name pattern {filename}.{bai/crai}

Merge branch 'version'