NN Output Activations Measurement

NNOutputActivations
================

Description:
---------------
Added the NNOutputActivations measurement to be able to extract the
resulting predictions/classifications made by the NN after each
iteration. An example of where this is useful, is where analysis on the
actual predictions of a given NN has to be made for an experiment such
as Time Series Data Analysis

Example of outcome:
----------------------------
Prerequisites:
* Time Series Data Set, exchange rates over a few years
* FFNN Trained with ChargedPSO (Period: 1)
* Input:
    * year: scaled (year-LB)/(UB-LB) where LB = 1965 and UB = 2000
    * month: scaled to month/12
* Output:
    * Predicted exchange rate, scaled back from (0..1) to (0..140)
* The NN in the example was by no means optimised i.t.o. parameter selection and is just an example of how to outcome can be used.


<div class="pull-left">
<img src="http://i61.tinypic.com/2ey80tx.png" title="Time Series Data Plot" width="450px"  />
</div>
<div class="pull-left">
<img src="http://i61.tinypic.com/xt9mp.png" title="MSEGeneralisationError" width="450px" />
</div>

Simulation (Added measurement):
---------------------------------------------
```xml
<measurements id="nnoutput" class="simulator.MeasurementSuite" resolution="1">
    <addMeasurement class="measurement.single.NNOutputActivations"/>
</measurements>
```