cleanup unused topics

docs/modules/ROOT/pages/jme3.adoc

@@ -8,9 +8,6 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 
 
 
-=== Virtual Reality & Simulation
-
-
 == jMonkey User Contributions
 
 *  <<jme3/contributions/vegetationsystem#,Vegetation System>>
@@ -23,7 +20,7 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 === Entity System
 *  <<jme3/contributions/entitysystem#, The Zay-ES Entity System>>
 
-== Artificial Intelligence (AI)
+=== Artificial Intelligence (AI)
 
 *  <<jme3/advanced/recast#,Recast Navigation>>
 *  <<jme3/advanced/building_recast#,Updating and building Recast Native Bindings>>
@@ -36,7 +33,7 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 ***  link:http://hub.jmonkeyengine.org/t/lemur-gems-2-inputmapper-delegates/28710[Lemur Gems #2 - Input mapper delegates]
 ***  link:http://hub.jmonkeyengine.org/t/lemur-gems-3-scene-picking/28713[Lemur Gems #3 - Scene picking]
 
-== gui
+=== gui
 *  link:https://github.com/jMonkeyEngine-Contributions/Lemur[Lemur - a native jME3 GUI library with scene graph tools]
 *  <<jme3/contributions/tonegodgui#,tonegodGUI - a native jME3 GUI library>>
 
@@ -48,16 +45,5 @@ ifdef::env-github,env-browser[:outfilesuffix: .adoc]
 === Sample Projects
 
 *  link:http://code.google.com/p/jmonkeyengine/source/browse/BookSamples/#BookSamples%2Fsrc[BookSamples] – Some more jME3 code samples
-
-These code examples are not supported by the core team and we cannot guarantee their correctness:
-
 *  <<jme3/shaderblow_project#,ShaderBlow Project>> – The jME3 users shaders project.
 *  <<jme3/rise_of_mutants_project#,Rise of Mutants Project>> – Rise of Mutants Project by BigBoots Team.
-
-
-== Feedback
-
-jME3 is in development; if a tutorial doesn't work as expected, try using the latest daily build. If that doesn't "`fix`" it then:
-
-*  <<report_bugs#,Report bugs or issues>>
-*  link:https://hub.jmonkeyengine.org/[Ask (and Answer!) Questions on the Forum]

docs/modules/core/nav.adoc

@@ -67,4 +67,5 @@
 *** xref:gui/nifty_gui_best_practices.adoc[Best Practices]
 *** xref:gui/nifty_gui_scenarios.adoc[Scenarios]
 ** xref:ui/hud.adoc[Head-Up Display (HUD)]
-* xref:vr/virtualreality.adoc[Virtual Reality]
+* Virtual Reality
+** xref:vr/virtualreality.adoc[Virtual Reality]