[SPARK-6149] [SQL] [Build] Excludes Guava 15 referenced by jackson-module-scala_2.10

[liancheng]

This PR excludes Guava 15.0 from the SBT build, to make Spark SQL CLI (bin/spark-sql) work when compiled against Hive 0.12.0.

[liancheng]

@pwendell I have verified locally that this fixes the SQL CLI tool with Hive 0.12.0. However, I'm not sure whether this is the most proper/elegant way to do the exclusion. Please help review, thanks!

[SparkQA]

Test build #28265 has started for PR 4890 at commit 282bd2a.

• This patch merges cleanly.

[SparkQA]

Test build #28265 has finished for PR 4890 at commit 282bd2a.

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

[AmplabJenkins]

Test PASSed.
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[pwendell]

@liancheng can you put this exclusion in the pom.xml file instead of in sbt? If you look there we already have other exclusions.

[liancheng]

@pwendell Thanks! Moved to POM.

[SparkQA]

Test build #28274 has started for PR 4890 at commit 91ae9fa.

• This patch merges cleanly.

[pwendell]

I'm going to "optimistically" merge this to cut another RC.

[SparkQA]

Test build #28274 has finished for PR 4890 at commit 91ae9fa.

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

[AmplabJenkins]

Test PASSed.
Refer to this link for build results (access rights to CI server needed):
https://amplab.cs.berkeley.edu/jenkins//job/SparkPullRequestBuilder/28274/
Test PASSed.