Move the change log of HDFS-723 from section 0.21 to section 0.20.2
Move the change log of HDFS-723 from section 0.21 to section 0.20.2


git-svn-id: 57163235a1b6531f4315e4c2085541e4e396aa2c@829894 13f79535-47bb-0310-9956-ffa450edef68

srijeyanthan/hops,steveloughran/hadoop-hdfs,hopshadoop/hops,gigaroby/hops,robzor92/hops,srijeyanthan/hops,srijeyanthan/hops,robzor92/hops,hopshadoop/hops,smkniazi/hops,hopshadoop/hops,hopshadoop/hops,smkniazi/hops,gigaroby/hops,srijeyanthan/hops,srijeyanthan/hops,steveloughran/hadoop-hdfs,smkniazi/hops,steveloughran/hadoop-hdfs,smkniazi/hops,gigaroby/hops,hopshadoop/hops,gigaroby/hops,srijeyanthan/hops,smkniazi/hops,steveloughran/hadoop-hdfs,smkniazi/hops,srijeyanthan/hops,hopshadoop/hops,robzor92/hops,steveloughran/hadoop-hdfs,hopshadoop/hops,gigaroby/hops,smkniazi/hops,steveloughran/hadoop-hdfs,robzor92/hops,gigaroby/hops,robzor92/hops,srijeyanthan/hops,gigaroby/hops,steveloughran/hadoop-hdfs,robzor92/hops,steveloughran/hadoop-hdfs,robzor92/hops,hopshadoop/hops,gigaroby/hops,robzor92/hops,smkniazi/hops