Fixed ScriptInstance node / component handle attributes so that they go through the SceneResolver properly.
Use AM_FILE mode in ScriptInstance script attributes to make it more explicit that they aren't network-serialized automatically.
Update wiki.


git-svn-id: http://urho3d.googlecode.com/svn/trunk@2589 3bd170d8-ddcf-f82c-f583-7a401ccf5608
Clear pending ID attributes when the script object is destroyed.


git-svn-id: http://urho3d.googlecode.com/svn/trunk@2590 3bd170d8-ddcf-f82c-f583-7a401ccf5608
Code and comment cleanup.


git-svn-id: http://urho3d.googlecode.com/svn/trunk@2591 3bd170d8-ddcf-f82c-f583-7a401ccf5608