fix versions.

Author: snystrom

Cargo.toml

@@ -1,13 +1,13 @@
 [package]
 name = "vplot"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["Spencer Nystrom <nystromdev@gmail.com>"]
 edition = "2018"
 
 [dependencies]
-csv = "*"
-bio = "*"
+csv = "1.1.3"
+bio = "0.32.0"
 rust-htslib = {version = "0.32", default-features = false}
 structopt = "*"
 ndarray = "0.13.1"
-ndarray-csv = "*"
+ndarray-csv = "0.4.1"