added missing @since

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/branches/MATH_2_X@1073267 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/math/ode/AbstractIntegrator.java

@@ -215,6 +215,7 @@ public abstract class AbstractIntegrator implements FirstOrderIntegrator {
      * {@code false} before they start integration, so a proper lazy
      * initialization is done automatically on the first step.</p>
      * @param stateInitialized new value for the flag
+     * @since 2.2
      */
     protected void setStateInitialized(final boolean stateInitialized) {
         this.statesInitialized = stateInitialized;
@@ -230,6 +231,7 @@ public abstract class AbstractIntegrator implements FirstOrderIntegrator {
      * @throws DerivativeException this exception is propagated to the caller if
      * the underlying user function triggers one
      * @exception IntegratorException if the value of one event state cannot be evaluated
+     * @since 2.2
      */
     protected double acceptStep(final AbstractStepInterpolator interpolator,
                                 final double[] y, final double[] yDot, final double tEnd)