All edit keys now work, but Ctrl-A still doesn't work right, it must be grabbed by something else...
Adds LLFocusMgr::keyboardFocusHasAccelerators()
Adds virtual bool LLView::hasAccelerators() which returns false by default, overrides returning true placed in LLPreviewScript and LLPreviewNotecard
Shortcut keys added to notecard and script menu xmls
I'm thinking Qarl's Align tool handling may be receiving the Ctrl-A, we do seem to handle it differently than Exodus and Firestorm something modern could have broken the old way..
Come to think of it, those two features(Align and Select all prims) have a longstanding shortcut conflict in shortcuts... that's pretty nasty
Also upgrade the file picker filters with the new extensions found
in the orginal file picker code of Singularity.
Also improve AIFilePicker a bit: added hasFilename() and now
deleting the statemachine automatically by default: it's no longer
needed to call deleteMe from the callback.
