Updates llfloatergroups to be a lot similar to upstream
- Adds LLFLoaterGroupPicker::removeNoneOption and changes LLFloaterGroupPicker to use modern style callback
- Switched from using per ui xml string for the none entry in groups to the strings.xml one, updated and cleaned existing translations to use this.
- Changes LLFLoaterGroupPicker into an instance tracker by id, because it was already acting like one.
Updates llpanelpermissions RLVa bits and fixes last owner label never enabled
Updates LLFloaterTopObjects code to have parcel filter(STAT_FILTER_BY_PARCEL_NAME) and use the CallbackRegistrar
Top Objects XML (and Translation) bits updated in part from Firestorm, as LL Viewer lacks certain buttons and the old xml was too far behind
- Translators may want to have a look at this... although you sorta need to have estate powers for it to be of any worth... *sigh*
Updates LLFloaterGodTools to use CallbackRegistrar
