EXT-4154 : Memory leak from FetchObservers in AppearanceSP
EXT-4154 : Memory leak from FetchObservers in AppearanceSP

Member observers of LLSidepanelAppearance are now deleted appropriately.

gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm,gabeharms/firestorm