[JRO] Update CHANGELOG w/last 0.3.0 notes
[JRO] Update CHANGELOG w/last 0.3.0 notes

thredded/thredded,jvoss/thredded,jvoss/thredded,jvoss/thredded,jayroh/thredded,jayroh/thredded,thredded/thredded,thredded/thredded,jvoss/thredded,jayroh/thredded,thredded/thredded,jayroh/thredded