Add @leone17's changes

Author: velvia

notes/0.6.2.markdown

@@ -8,6 +8,7 @@
 * DEBUG_PORT env var allows remote debugging (@addisonj)
 * UI links to status/config (@h0ke)
 * Fix bug - invalid error w no user/pass #329 (@slater-ben)
+* Chunked stream encoding for Stream[_] job output (@leone17)
 * Workaround - custom error classes for context-per-jvm (@ishassan)
 * Spark Hadoop configuration in spark.context-settings.hadoop (@hntd187)
 * Expose MAX_DIRECT_MEMORY to adjust direct memory buffer size (@addisonj)