HOTFIX: Bump spark-ec2 version to 1.1.0
[SPARK-3307] [PySpark] Fix doc string of SparkContext.broadcast()

 remove invalid docs

Author: Davies Liu <davies.liu@gmail.com>

Closes #2202 from davies/keep and squashes the following commits:

aa3b44f [Davies Liu] remove invalid docs

(cherry picked from commit e248328b39f52073422a12fd0388208de41be1c7)
Signed-off-by: Josh Rosen <joshrosen@apache.org>
[Docs] SQL doc formatting and typo fixes

As [reported on the dev list](http://apache-spark-developers-list.1001551.n3.nabble.com/VOTE-Release-Apache-Spark-1-1-0-RC2-tp8107p8131.html):
* Code fencing with triple-backticks doesn’t seem to work like it does on GitHub. Newlines are lost. Instead, use 4-space indent to format small code blocks.
* Nested bullets need 2 leading spaces, not 1.
* Spellcheck!

Author: Nicholas Chammas <nicholas.chammas@gmail.com>
Author: nchammas <nicholas.chammas@gmail.com>

Closes #2201 from nchammas/sql-doc-fixes and squashes the following commits:

873f889 [Nicholas Chammas] [Docs] fix skip-api flag
5195e0c [Nicholas Chammas] [Docs] SQL doc formatting and typo fixes
3b26c8d [nchammas] [Spark QA] Link to console output on test time out

(cherry picked from commit 53aa8316e88980c6f46d3b9fc90d935a4738a370)
Signed-off-by: Michael Armbrust <michael@databricks.com>
[SPARK-3234][Build] Fixed environment variables that rely on deprecated command line options in make-distribution.sh

Please refer to [SPARK-3234](https://issues.apache.org/jira/browse/SPARK-3234) for details.

Author: Cheng Lian <lian.cs.zju@gmail.com>

Closes #2208 from liancheng/spark-3234 and squashes the following commits:

fb26de8 [Cheng Lian] Fixed SPARK-3234
(cherry picked from commit 287c0ac7722dd4bc51b921ccc6f0e3c1625b5ff4)

Signed-off-by: Patrick Wendell <pwendell@gmail.com>
[SPARK-3269][SQL] Decreases initial buffer size for row set to prevent OOM

When a large batch size is specified, `SparkSQLOperationManager` OOMs even if the whole result set is much smaller than the batch size.

Author: Cheng Lian <lian.cs.zju@gmail.com>

Closes #2171 from liancheng/jdbc-fetch-size and squashes the following commits:

5e1623b [Cheng Lian] Decreases initial buffer size for row set to prevent OOM

(cherry picked from commit d94a44d7caaf3fe7559d9ad7b10872fa16cf81ca)
Signed-off-by: Michael Armbrust <michael@databricks.com>
[SPARK-3291][SQL]TestcaseName in createQueryTest should not contain ":"

":" is not allowed to appear in a file name of Windows system. If file name contains ":", this file can't be checked out in a Windows system and developers using Windows must be careful to not commit the deletion of such files, Which is very inconvenient.

Author: qiping.lqp <qiping.lqp@alibaba-inc.com>

Closes #2191 from chouqin/querytest and squashes the following commits:

0e943a1 [qiping.lqp] rename golden file
60a863f [qiping.lqp] TestcaseName in createQueryTest should not contain ":"

(cherry picked from commit 634d04b87c2744d645e9c26e746ba2006371d9b5)
Signed-off-by: Michael Armbrust <michael@databricks.com>
Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit a4a7a241441489a0d31365e18476ae2e1c34464d.
Revert "[maven-release-plugin] prepare release v1.1.0-rc2"

This reverts commit 711aebb329ca28046396af1e34395a0df92b5327.