xapirpc: move to 0.3.0 and rationalise cli

Signed-off-by: Marcello Seri <marcello.seri@citrix.com>

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 authors = ["Marcello Seri"]
 name = "xapirpc"
-version = "0.2.0"
+version = "0.3.0"
 homepage = "https://github.com/mseri/xapirpc-rs"
 repository = "https://github.com/mseri/xapirpc-rs.git"
 readme = "README.md"

README.md

@@ -1,23 +1,30 @@
-
+Minimal CLI client for xapi rpc calls.
+The ouptu is in json, so can be piped to `jq` or other json tools for further filtering.
 
 ```
-Dummy xapi xmlrpc CLI client 0.1
-Marcello S. <marcello.seri@citrix.com>
+xapirpc --help
+Minimal xapi xmlrpc CLI client
 CLI interface to interrogate an instance of XenServer via xmlrpc
+
 USAGE:
-    xapirpc [OPTIONS] <CLASS> <METHOD> [ARGS]...
+    xapirpc [FLAGS] [OPTIONS] <CLASS> <METHOD> [ARGS]...
+
 FLAGS:
+        --compact    Output the result as non-prettified json.
     -h, --help       Prints help information
     -V, --version    Prints version information
+
 OPTIONS:
         --host <HOST>        XenServer host. Can be passed with the HOST env variable. [env:XAPI_HOST: ]
     -p, --pass <PASSWORD>    XenServer host user password. Can be passed with the XAPI_PASSWORD env variable.
                              [env:XAPI_PASSWORD: ]
     -u, --user <USER>        XenServer host user name. Can be passed with the XAPI_USER env variable. [env:XAPI_USER: ]
+
 ARGS:
     <CLASS>      Case sensitive value for the xapi class.
     <METHOD>     Case sensitive value for the xapi method.
     <ARGS>...    Ordered list of arguments for the call (if any). Do not pass a session.
+
 ```
 
-To try it, clone this repository and build with `cargo build --release`
+To try it, clone this repository and build with `cargo build --release` or install it using `cargo install xapirpc --force`.

src/main.rs

@@ -110,9 +110,7 @@ fn as_json(value: &Value) -> json::Value {
 }
 
 fn main() {
-    let matches = App::new("Dummy xapi xmlrpc CLI client")
-        .version("0.1")
-        .author("Marcello S. <marcello.seri@citrix.com>")
+    let matches = App::new("Minimal xapi xmlrpc CLI client")
         .about("CLI interface to interrogate an instance of XenServer via xmlrpc")
         .arg(Arg::with_name("host")
              .long("host")