Trainable Weka Segmentation: added exception print trace.
Trainable Weka Segmentation: added log information when loading a classifier fails.
Trainable Weka Segmentation: fixed bugs in the GUI code.

Correct javadoc typos and add update help URL in the Settings dialog as pointed out by Johannes Schindelin.
Merge branch 'trainable-seg-gui'

Correct typos and update link in the GUI.
TrackMate_: v2.0.4: fix a GUI bug noticed by T. Pietzsch

Signed-off-by: Jean-Yves Tinevez <jean-yves.tinevez@pasteur.fr>
Merge branch 'master' of git://github.com/fiji/fiji
Fiji Archipelago: UI Fixes
Fiji Archipelago: Plugin to do batch segmentation with Trainable Segmentation
Archipelago Plugins: Debugging an inexplicable exception
Fiji Archipelago: Better error reporting when files IO fails, avoid non-headless image saving
Fiji Archipelago: Better error reporting in MessageXC
Fiji Archipelago: Appropriately named packages in plugins
Fiji Archipelago: Batch Weka Segmentation support for multiple classes
Fiji Archipelago: Correctly detect the presence of subfolders
Fiji Archipelago: Create a subfolder for each slice for batch segmentation
Fiji Archipelago: Small UI fixes