Add in @addisonj's DEBUG_PORT change

Author: velvia

notes/0.6.2.markdown

@@ -4,11 +4,12 @@
 * Update to Spark 1.6.0 (@RaafatAkkad, @apivovarov)
 * NamedObjects, an abstraction of NamedRDDs to other types of things (@TimMaltGermany / KNIME)
 * Per-job dependent jars (@amarouni)
+* 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)
 * Redirect /dev/null to stdin in server_start.sh (@apivovarov)
 * Database migration scripts and better table definitions (@v-gerasimov)
 * Chinese doc updates (@zp-j, @liujuncheng)
 * Minor improvements in style (@apivovarov)
 * README change to document overriding default meta data DB backend (@noorul)
-* README typo fix (@qayshp)
+* README typo fix (@qayshp)