SPARK-5172 [BUILD] spark-examples-***.jar shades a wrong Hadoop distribution

[srowen]

In addition to the hadoop-2.x profiles in the parent POM, there is actually another set of profiles in examples that has to be activated differently to get the right Hadoop 1 vs 2 flavor of HBase. This wasn't actually used in making Hadoop 2 distributions, hence the problem.

To reduce complexity, I suggest merging them with the parent POM profiles, which is possible now.

You'll see this changes appears to update the HBase version, but actually, the default 0.94 version was not being used. HBase is only used in examples, and the examples POM always chose one profile or the other that updated the version to 0.98.x anyway.

[SparkQA]

Test build #25379 has started for PR 3992 at commit 17830d9.

• This patch merges cleanly.

[SparkQA]

Test build #25379 has finished for PR 3992 at commit 17830d9.

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

[AmplabJenkins]

Test PASSed.
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https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/25379/
Test PASSed.

[zsxwing]

👍

[scwf]

LGTM.

[pwendell]

Thanks all, I'll pull this in.