Updating CHANGELOG for 0.5.0 release.
Updating CHANGELOG for 0.5.0 release.

rdelval/aurora,rosmo/aurora,thinker0/aurora,protochron/aurora,wfarner/aurora,protochron/aurora,shahankhatch/aurora,mschenck/aurora,crashlytics/aurora,shahankhatch/aurora,mschenck/aurora,rdelval/aurora,rosmo/aurora,wfarner/aurora,mschenck/aurora,shahankhatch/aurora,crashlytics/aurora,wfarner/aurora,rosmo/aurora,medallia/aurora,crashlytics/aurora,rdelval/aurora,kidaa/aurora,medallia/aurora,medallia/aurora,protochron/aurora,mkhutornenko/incubator-aurora,kidaa/aurora,crashlytics/aurora,crashlytics/aurora,thinker0/aurora,apache/aurora,wfarner/aurora,mschenck/aurora,medallia/aurora,medallia/aurora,protochron/aurora,protochron/aurora,kidaa/aurora,mschenck/aurora,rdelval/aurora,mkhutornenko/incubator-aurora,apache/aurora,shahankhatch/aurora,mkhutornenko/incubator-aurora,apache/aurora,rosmo/aurora,rosmo/aurora,mkhutornenko/incubator-aurora,crashlytics/aurora,wfarner/aurora,protochron/aurora,medallia/aurora,kidaa/aurora,rdelval/aurora,apache/aurora,apache/aurora,kidaa/aurora,thinker0/aurora,mkhutornenko/incubator-aurora,kidaa/aurora,mschenck/aurora,rdelval/aurora,rosmo/aurora,thinker0/aurora,shahankhatch/aurora,apache/aurora,thinker0/aurora,shahankhatch/aurora,thinker0/aurora,wfarner/aurora