BUG: fix failing landmark registration test

Update the remote module to better handle scene events.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23226 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Install Extension Wizard templates

Add rules to install the module/extension templates used by the
Extension Wizard. This makes them available to users that do not have a
source checkout.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23227 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Expose qMRMLTreeView scene model and proxy model to python.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23228 3bd1e089-480b-0410-8dfb-8563597acbee
STYLE: Remove forgotten debug statement in installExtension

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23229 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Exclude json extension from git hook line lengths check

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23230 3bd1e089-480b-0410-8dfb-8563597acbee
BUG: Fix failing qSlicerExtensionsManagerModelTest

Commit r23200 added icon URL to extension metadata and commit 9dc157 [1]
updated the server to return the iconurl, this commit
fixes the server mock data also adding iconurl .

[1] https://github.com/midasplatform/slicerpackages/commit/9dc1575d2bf9d3c053700f541cdb5034f8328eee

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23231 3bd1e089-480b-0410-8dfb-8563597acbee
ENH: Improved scripted module loading error message

It happened multiple times in our group that a developer spent a lot of time trying to find errors in a scripted module, simplify the class, make it more similar to the template, etc. to find what can be wrong in the class because "Failed to load scripted pythonqt module class definition" error was reported. Then it turned out that the module class is perfect, only the name does not match the filename.

Implemented fix: changed the error message to "class ... not found in file ..." to make it clear that the problem is not in implementation of the class but in the name.

From: Andras Lasso <lasso@queensu.ca>

git-svn-id: http://svn.slicer.org/Slicer4/trunk@23232 3bd1e089-480b-0410-8dfb-8563597acbee