Refactor for Java 1.8

- Clean up and refactor code

- Add 1.8 features

- Clean up IntelliJ inspector warnings

src/main/java/com/loomcom/symon/exceptions/SymonException.java

@@ -31,7 +31,4 @@ public class SymonException extends Exception {
     public SymonException(String msg) {
         super(msg);
     }
-    public SymonException() {
-        super();
-    }
 }