ENH: Update extension metadata

Consolidate extension metadata based on the corresponding s4ext file organized
in the ExtensionsIndex repository.

Author: jcfr

CMakeLists.txt

@@ -4,12 +4,12 @@ project(DeveloperToolsForExtensions)
 
 #-----------------------------------------------------------------------------
 # Extension meta-information
-set(EXTENSION_HOMEPAGE "http://www.slicer.org/slicerWiki/index.php/Documentation/Nightly/Extensions/DeveloperToolsForExtensions")
+set(EXTENSION_HOMEPAGE "https://www.slicer.org/slicerWiki/index.php/Documentation/Nightly/Extensions/DeveloperToolsForExtensions")
 set(EXTENSION_CATEGORY "Developer Tools")
 set(EXTENSION_CONTRIBUTORS "Francois Budin (UNC), Andras Lasso (PerkLab, Queen's University), Jean-Christophe Fillion-Robin (Kitware)")
 set(EXTENSION_DESCRIPTION "This extension offers different tools to help developers when they create and maintain Slicer extension.")
-set(EXTENSION_ICONURL "https://raw.githubusercontent.com/fbudin69500/SlicerDeveloperToolsForExtensions/master/DeveloperToolsForExtensions/Resources/Icons/DeveloperToolsForExtensions.png")
-set(EXTENSION_SCREENSHOTURLS "http://www.slicer.org/slicerWiki/images/5/54/SlicerExtension-SlicerDeveloperToolsForExtensions-Screenshot.png http://www.slicer.org/slicerWiki/images/d/db/SlicerExtensions-SlicerDeveloperToolsForExtensions-Screenshot-panels.png")
+set(EXTENSION_ICONURL "https://raw.githubusercontent.com/Slicer/SlicerDeveloperToolsForExtensions/master/DeveloperToolsForExtensions/Resources/Icons/DeveloperToolsForExtensions.png")
+set(EXTENSION_SCREENSHOTURLS "https://www.slicer.org/slicerWiki/images/5/54/SlicerExtension-SlicerDeveloperToolsForExtensions-Screenshot.png https://www.slicer.org/slicerWiki/images/d/db/SlicerExtensions-SlicerDeveloperToolsForExtensions-Screenshot-panels.png")
 
 #-----------------------------------------------------------------------------
 # Extension dependencies