Enhance binary compare operators, especially equals, to more closely match what standard lua does.

src/main/java/lua/value/LDouble.java

@@ -10,10 +10,6 @@ public class LDouble extends LNumber {
 		this.m_value = value;
 	}
 
-	public boolean equals(Object o) {
-		return o != null && o instanceof LDouble && m_value == ((LDouble)o).m_value;
-	}
-
 	public int hashCode() {
 		return (int) m_value;
 	}