Improve building with maven docs

     mvn -Dhadoop.version=... -Dsuites=spark.repl.ReplSuite test

to

     mvn -Dhadoop.version=... -Dsuites=org.apache.spark.repl.ReplSuite test

Author: liguoqiang <liguoqiang@rd.tuan800.com>

Closes #70 from witgo/building_with_maven and squashes the following commits:

6ec8a54 [liguoqiang] spark.repl.ReplSuite to org.apache.spark.repl.ReplSuite

docs/building-with-maven.md

@@ -56,7 +56,7 @@ Tests are run by default via the [ScalaTest Maven plugin](http://www.scalatest.o
 
 The ScalaTest plugin also supports running only a specific test suite as follows:
 
-    $ mvn -Dhadoop.version=... -Dsuites=spark.repl.ReplSuite test
+    $ mvn -Dhadoop.version=... -Dsuites=org.apache.spark.repl.ReplSuite test
 
 
 ## Continuous Compilation ##