Merge topic 'docs-mention-configure-debug-flag'

1123867a docs: mention the new configure debug flag
8060fec5 superbuild: bump for new debugging flag
Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Utkarsh Ayachit <utkarsh.ayachit@kitware.com>
Merge-request: !598

README.md

@@ -249,6 +249,9 @@ time.
   * `USE_SYSTEM_xxx` (default `OFF`): If selected, the `xxx` project from the
     build environment is used instead of building it within the superbuild.
     Not all projects support system copies (the flag is not available if so).
+  * `SUPERBUILD_DEBUG_CONFIGURE_STEPS` (default `OFF`): If set, the superbuild
+    will log configure steps for each `xxx` project into
+    `superbuild/xxx/stamp/xxx-configure-*.log` files.
 
 The following flags affect ParaView directly:
 

superbuild @ adc5ab1a

-Subproject commit 13b1f13d332ac916560084df9743d2dc547775ef
+Subproject commit adc5ab1a8cba4e2c29341fb095735f3c23e31e82