Change package name to du-dust

The binary is still called dust. Sadly dust was taken on crates.io.
This change should allow us to send this crate to crates.io

Cargo.toml

@@ -1,8 +1,24 @@
 [package]
-name = "dust"
-version = "0.2.3"
+name = "du-dust"
+description = "A more intuitive version of du"
+version = "0.2.4"
 authors = ["bootandy <bootandy@gmail.com>", "nebkor <code@ardent.nebcorp.com>"]
 
+documentation = "https://github.com/bootandy/dust"
+homepage = "https://github.com/bootandy/dust"
+repository = "https://github.com/bootandy/dust"
+
+keywords = ["du", "command-line", "disk", "disk-usage"]
+categories = ["command-line-utilities"]
+license = "Apache-2.0"
+
+[badges]
+travis-ci = {repository = "https://travis-ci.org/bootandy/dust"}
+
+[[bin]]
+name = "dust"
+path = "src/main.rs"
+
 [dependencies]
 ansi_term = "0.11"
 clap = "2.31"