Starting to implement output into an instance of ResultTable.
Implemented output to ResultTable and the use of the IJ progress bar.

Drift and shift of each image are shown at a ResultTable. The shift is
only added if an image shift is performed.
NormCrossCorrelation has been extended to show the progress of the
calculation by using IJ.showProgress(progress, progressSteps). A public
static method is used to set higher values of processSteps. this is
necessary because DriftDetectionPlugin can create more than one instance
of NormCrossCorrelation that should use the same process indicator.
Implemented stack creation and did some optimisations.

ExtendedStackToImage is a modified version of StackToImage. The extended
version gives the opportunity to sort the images.

A GenericDialog is used to select the mode of drift detection. A
YesNoCancelDialog was used until now.
Added a message that informs about the not yet implemented manual mode.
OptimisedStackShifter uses the right title if a new image is created.
Implemented the parameter dialog for StackShifterPlugin.

I added 2 numeric fields for each slice of the selected stack. The user
can choose to applay the entered shift, or he can use the automatic
optimisation.
Started to implement the ElementalMappingPlugin.

The main part of the parameter dialog is finished. I recycled the code
of my old elemental mapping plugin to read out the energy loss by using
regular expressions (EnergyLossExtractor) and to identify the ionisation
edge.
Implemented basic elemental mapping.

The GUI is nearly completed and the MLE method works fine. But is is
much to do, like implementing the SNR calculation.
Merge branch 'DriftDetection'

Conflicts:
	EFTEMj/src/drift/DriftDetectionPlugin.java
Merge branch 'ElementalMapping'

Conflicts:
	EFTEMj/src/elemental_map/ElementalMappingPlugin.java