[SPARK-11410] [PYSPARK] Add python bindings for repartition and sortW…

[nongli]

…ithinPartitions.

[SparkQA]

Test build #45147 has finished for PR 9504 at commit 2ce6da8.

• This patch fails Python style tests.
• This patch merges cleanly.
• This patch adds no public classes.

[sryza]

Title should have the [SQL] tag as well

[rxin]

@nongli

you can run the python test locally by python/run-tests --module pyspark-sql (take a look at -h to see the exact command)

before you run that, you need to build the assembly jar for Spark, e.g. sbt/sbt assembly/assembly

[rxin]

cc @davies

[davies]

This one is not needed here, since you do not have u"" in the doc test.

[SparkQA]

Test build #45239 has finished for PR 9504 at commit a63f552.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[AmplabJenkins]

Build finished. 201 tests run, 0 skipped, 0 failed.

[davies]

This should be 1.3, we can have .. versionchanged:: version xxx in the end of doc.

In order to have good order, we may not use since here, but

.. versionadd:: 1.3
.. versionchanged:: 1.6 xxx

[davies]

LGTM

[davies]

Since the last commit only updated the doc, I will merge this into master and 1.6 branch, thanks!