Disable build failing if scalastyle checking is fall. (apache#214)

Author: ekrivokonmapr

pom.xml

@@ -2395,7 +2395,7 @@
         <version>0.8.0</version>
         <configuration>
           <verbose>false</verbose>
-          <failOnViolation>true</failOnViolation>
+          <failOnViolation>false</failOnViolation>
           <includeTestSourceDirectory>false</includeTestSourceDirectory>
           <failOnWarning>false</failOnWarning>
           <sourceDirectory>${basedir}/src/main/scala</sourceDirectory>