OMID-211 HBase Shims leak testing dependencies as compile dependencies.

HBase-testing-util was scoped as compile dependency, so all users depending on one of the shims will have it on it's classpath, unless they exclude it.

[INFO] |  |  +- org.apache.phoenix:phoenix-core:jar:5.1.0.7.1.6.0-297:compile
[INFO] |  |  |  +- org.apache.phoenix.thirdparty:phoenix-shaded-guava:jar:1.0.0.7.1.6.0-297:compile
[INFO] |  |  |  +- org.apache.phoenix:phoenix-hbase-compat-2.4.0:jar:5.1.0.7.1.6.0-297:compile
[INFO] |  |  |  +- org.apache.hadoop:hadoop-yarn-api:jar:3.1.1.7.1.6.0-297:compile
[INFO] |  |  |  +- org.apache.hadoop:hadoop-hdfs-client:jar:3.1.1.7.1.6.0-297:compile
[INFO] |  |  |  +- org.apache.omid:omid-hbase-client-hbase2.x:jar:1.0.2.7.1.6.0-297:compile
[INFO] |  |  |  +- org.apache.omid:omid-hbase-coprocessor-hbase2.x:jar:1.0.2.7.1.6.0-297:compile
[INFO] |  |  |  +- org.apache.omid:omid-hbase-shims-hbase2.x:jar:1.0.2.7.1.6.0-297:compile
[INFO] |  |  |  |  +- org.apache.hbase:hbase-endpoint:jar:2.2.3.7.1.6.0-297:compile
[INFO] |  |  |  |  \- org.apache.hbase:hbase-testing-util:jar:2.2.3.7.1.6.0-297:compile
[INFO] |  |  |  |     +- org.apache.hbase:hbase-server:test-jar:tests:2.2.3.7.1.6.0-297:compile
[INFO] |  |  |  |     |  +- org.apache.hbase:hbase-http:jar:2.2.3.7.1.6.0-297:compile
[INFO] |  |  |  |     |  +- org.glassfish.web:javax.servlet.jsp:jar:2.3.2:compile
[INFO] |  |  |  |     |  |  \- org.glassfish:javax.el:jar:3.0.1-b11:compile
[INFO] |  |  |  |     |  +- javax.servlet.jsp:javax.servlet.jsp-api:jar:2.3.1:compile
[INFO] |  |  |  |     +- org.apache.hadoop:hadoop-hdfs:test-jar:tests:3.1.1.7.1.6.0-297:compile
[INFO] |  |  |  |     \- org.apache.hadoop:hadoop-minicluster:jar:3.1.1.7.1.6.0-297:compile
[INFO] |  |  |  |        +- org.apache.hadoop:hadoop-common:test-jar:tests:3.1.1.7.1.6.0-297:compile
[INFO] |  |  |  |        |  +- javax.servlet.jsp:jsp-api:jar:2.1:runtime
[INFO] |  |  |  |        |  +- com.sun.jersey:jersey-core:jar:1.19:compile
[INFO] |  |  |  |        |  |  \- javax.ws.rs:jsr311-api:jar:1.1.1:compile
diff --git a/hbase-shims/pom.xml b/hbase-shims/pom.xml
index 3e66d6f..fade041 100644
--- a/hbase-shims/pom.xml
+++ b/hbase-shims/pom.xml
@@ -59,6 +59,7 @@
         <dependency>
             <groupId>org.apache.hbase</groupId>
             <artifactId>hbase-testing-util</artifactId>
+            <scope>test</scope>
         </dependency>