clean up what exec does

Author: michaelzhao820

README.md

@@ -98,7 +98,7 @@ Execute the test suite:
 ```
 
 #### Run the Application
-Start the OGO application:
+Test out the OGO application by running it against Main.java
 
 ```bash
 ./tasks.sh exec

tasks.sh

@@ -101,7 +101,7 @@ function exec() {
         ( 
           export LD_LIBRARY_PATH="./src/main/c/build"
           export JAVA_TOOL_OPTIONS="-Djava.util.logging.config.file=./src/main/resources/logging.properties"
-          mvn -e exec:exec@main
+          mvn exec:exec@serverStart && sleep 4 && mvn -e exec:exec@main
         )
 }