Update error-chain and binary name

Don't have "install" in the name so it doesn't hit permission problems on
Windows

Author: alexcrichton

Cargo.toml

@@ -5,11 +5,11 @@ version = "0.0.0"
 
 [[bin]]
 doc = false
-name = "rust-installer"
+name = "fabricate"
 path = "src/main.rs"
 
 [dependencies]
-error-chain = "0.10.0"
+error-chain = "0.11.0"
 flate2 = "0.2.19"
 tar = "0.4.13"
 walkdir = "1.0.7"