ij-plugins Toolkit v.1.6.1

New:
* Plugins > Color > Measure Bands - measures color images and stacks writing results in a single row, rather than a separate row for each band or slice. Works on RGB images or gray level stacks.

Improvements:
Stacks created by RGB to CIE Lab and RGB to XYZ converters now have correct labels for each slice (name of the color band).
Updated dependent libraries to recent versions.
Add support for virtual stack to metaimage IO, based on patch provided by Eric Nodwell.
* Add help button to plugin options dialog
-- Maximum Entropy Multi-Theshold plugin
-- k-means Clustering plugin
-- Region Growing plugin

Developer visible:
Some utility methods added to VectorProcessor and ColorProcesorUtils.
Support for color space conversions with custom white point