Updating changelog for 2.4.2 release.
Updating changelog for 2.4.2 release.

danielsamuels/cms,danielsamuels/cms,lewiscollard/cms,danielsamuels/cms,etianen/cms,etianen/cms,jamesfoley/cms,dan-gamble/cms,lewiscollard/cms,lewiscollard/cms,jamesfoley/cms,dan-gamble/cms,etianen/cms,jamesfoley/cms,jamesfoley/cms,dan-gamble/cms