* ROI:
 - getBooleanMask2D(..) returns now an empty mask instead of null.
 - fixed minors bugs.
* Replaced 'Save' by 'Save as' one.
* minors changes on About frame.
* minors changes on javadoc generation.
javadoc update
Filter out Jython classes when reloading the plugins

This prevents the Console from being flooded with messages such as:
Class 'plugins.tlecomte.jythonForIcy.Lib.re$py' cannot be loaded :
Required class 'plugins.tlecomte.jythonForIcy.Lib.re$py (wrong name:
re$py)' not found.
Merge pull request #527 from tlecomte/ignore-python-classes-in-loader

Filter out Jython classes when reloading the plugins
Merge branch 'master' of https://Stephane-D@github.com/Icy-imaging/Icy-Kernel.git
Javadoc improvements.
* ROIxxStack: fixed issue in bounds calculations.
* BooleanMask: fixed issue in bounds calculations.
* version change.
* minor javadoc change.
Fix screenshot in 3D canvas by asking VTK for RGB instead of RGBA
Merge pull request #528 from tlecomte/vtkScreenshot

Fix screenshot in 3D canvas by asking VTK for RGB instead of RGBA
* fixed issues with BooleanMask and ROI bounds calculations.
* fixed issues in ROI merge operations.
* Rectangle<X>D: added setInfinity..() method.
Use now an IcyFrame for the New Version changelog display.
package html