Bug fix: circumvent using LLs notify system.

Can't use LLs LLFolderViewItem::rename from
LLInventoryPanel::modelChanged because it's nonrobust spaghetti code
and causes randomly sized loops.

Also cleaned up the number of unused nameOrDescriptionChanged functions
introduced in a previous commit.
Merge branch 'master' of git://github.com/AlericInglewood/SingularityViewer