Created 3 new classes for energy dispersion calibration:

1. SR_EELS_DispersionCalibrationPlugin.java
 - This is a PlugIn implementing ExtendedPlugInFilter
 - A small GUI is used to calibrate an image using different methods
 - The dispersion is taken from the IJ_Prefs.txt
 - The IJ_Prefs.txt is used to store the settings of the last run
2. SR_EELS_DispersionConfigurationPlugin.java
 - This plugin creates the dispersion values at the IJ_Prefs.txt
 - ToDO: create a GUI to add, edit and remove values
3. EFTEMj.java
 - This class will mainly be used to store Plugin specific constants
 - Currently only one constant is implemented, a prefix for key used to
access the IJ_Prefs.txt
Edited plugins.config to add some submenus.
Extended OptimisedStackShifter to handle the borders in different ways:

- crop the image to remove all borders
- set borders to different values (zero, NaN and -Float.MIN_VALUE)
- a new choice element has been added to the parameter dialogs of
DriftDetectionPlugin and StackShifterPlugin
Updated project's eclipse settings (org.eclipse.jdt.ui.prefs):

Changed my name at the copyright template
Merge branch 'DriftDetection'
Merge branch 'SR-EELS'
Updated plugins.config:

- created a new folder "Plugins>EFTEMj>Drift"
- added "draft" to the entry for
sr_eels.SR_EELS_DispersionConfigurationPlugin