SPARK-1621 Upgrade Chill to 0.3.6

It registers more Scala classes, including things like Ranges that we had to register manually before. See https://github.com/twitter/chill/releases for Chill's change log.

Author: Matei Zaharia <matei@databricks.com>

Closes #543 from mateiz/chill-0.3.6 and squashes the following commits:

a1dc5e0 [Matei Zaharia] Upgrade Chill to 0.3.6 and remove our special registration of Ranges

(cherry picked from commit a24d918c71f6ac4adbe3ae363ef69f4658118938)
Signed-off-by: Matei Zaharia <matei@databricks.com>
Delete the val that never used

It seems that the val "startTime" and "endTime" is never used, so delete them.

Author: WangTao <barneystinson@aliyun.com>

Closes #553 from WangTaoTheTonic/master and squashes the following commits:

4fcb639 [WangTao] Delete the val that never used

(cherry picked from commit 25a276dd21457fa0db76b6be93765682a50b784a)
Signed-off-by: Reynold Xin <rxin@apache.org>
Update KafkaWordCount.scala

modify the required args number

Author: baishuo(白硕) <vc_java@hotmail.com>

Closes #523 from baishuo/master and squashes the following commits:

0368ba9 [baishuo(白硕)] Update KafkaWordCount.scala

(cherry picked from commit 8aaef5c75624b48806a05943454f7b72f3ca1bdc)
Signed-off-by: Tathagata Das <tathagata.das1565@gmail.com>
SPARK-1607. HOTFIX: Fix syntax adapting Int result to Short

Sorry folks. This should make the change for SPARK-1607 compile again. Verified this time with the yarn build enabled.

Author: Sean Owen <sowen@cloudera.com>

Closes #556 from srowen/SPARK-1607.2 and squashes the following commits:

e3fe7a3 [Sean Owen] Fix syntax adapting Int result to Short

(cherry picked from commit df6d81425bf3b8830988288069f6863de873aee2)
Signed-off-by: Aaron Davidson <aaron@databricks.com>