change "body-parser" to "~1.9.2",
Add about dialog, bug fix for argument parsing
Merge branch 'master' of ssh://github.com:22/celaoforever/SHEsis
Merge branch 'master' of ssh://github.com:22/celaoforever/SHEsis
fix a bug for calculating callrate when permutation, fix a bug for haplotype chi square test