use my hts-sys fork with newer htslib

Author: killercup

Cargo.toml

@@ -21,7 +21,7 @@ bio-types = ">=0.9"
 byteorder = "1.3"
 custom_derive = "0.1"
 derive-new = "0.7"
-hts-sys = {version = "2.2.0", default-features = false, features = ["bindgen"]}
+hts-sys = { git = "https://github.com/Softleif/hts-sys.git", default-features = false }
 ieee754 = "0.2"
 lazy_static = "1.4"
 libc = "0.2"