Made constructor of transform.FastCosineTransformer private, as factory methods create() and createOrthogonal() should be preferred (MATH-677).

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1213154 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/math/transform/FastCosineTransformer.java

@@ -58,7 +58,7 @@ public class FastCosineTransformer implements RealTransformer {
      * @see #create()
      * @see #createOrthogonal()
      */
-    public FastCosineTransformer(final boolean orthogonal) {
+    private FastCosineTransformer(final boolean orthogonal) {
         this.orthogonal = orthogonal;
     }