Housekeeping around Cliff's entry:

- Making launcher executable
- Removing time call
- Honoring copyright request

calculate_average_cliffclick.sh

@@ -17,4 +17,4 @@
 
 
 JAVA_OPTS=""
-time java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_cliffclick
+java $JAVA_OPTS --class-path target/average-1.0.0-SNAPSHOT.jar dev.morling.onebrc.CalculateAverage_cliffclick

pom.xml

@@ -209,6 +209,8 @@
                 <exclude>**/measurements*.out</exclude>
                 <exclude>out_expected.txt</exclude>
                 <exclude>github_users.txt</exclude>
+                <!-- Cliff asked to be named as the copyright holder for his entry; -->
+                <exclude>src/main/java/dev/morling/onebrc/CalculateAverage_cliffclick.java</exclude>
               </excludes>
             </configuration>
             <executions>