Aliases work, Alt + . works, README update

src/shell/config.rs

@@ -59,8 +59,6 @@ impl SqishConf {
             hotkeys: hotkeys,
         };
 
-        println!("{:?}", out_conf);
-
         out_conf.handle_rgb();
         out_conf.handle_colors();
 

src/shell/history.rs

@@ -101,3 +101,19 @@ pub fn treat_history_callback(line: &str) -> Option<String> {
     get_hist_from_number(&mynbr)
 }
 
+pub fn get_prev_arg() -> Option<String> {
+    let nbr = get_history_number();
+    match nbr {
+        Ok(r) => {
+            let prev_cmd = get_hist_from_number(&r).unwrap_or(String::new());
+            let last_arg = prev_cmd.split_whitespace().last().unwrap();
+            return Some(String::from(last_arg));
+        },
+        Err(_) => {
+            return None
+        },
+    };
+}
+
+
+