Update CHANGELOG for CocoaLS 2.4.3
Update CHANGELOG for CocoaLS 2.4.3

Change-Id: Id71434799d5e4b8387dd538dd48b255eb5707be3

spotify/cocoalibspotify,spotify/cocoalibspotify,spectralmind/cocoalibspotify,andyvand/cocoalibspotify,spectralmind/cocoalibspotify,andyvand/cocoalibspotify,spotify/cocoalibspotify,andyvand/cocoalibspotify,spotify/cocoalibspotify,CrowdTunes/cocoalibspotify,CrowdTunes/cocoalibspotify,spectralmind/cocoalibspotify,andyvand/cocoalibspotify,CrowdTunes/cocoalibspotify,CrowdTunes/cocoalibspotify,spectralmind/cocoalibspotify