Code fixes to get all test cases to work on Tomee.
1) In TestConfigFactory.java: set classloader to avoid runtime error
2) In Tomcat5FileSystemInstaller.java: added trailing slash to context name
to avoid tomcat warning during bringup
Added profile to build Pluto appropriately for deployment on Tomee 1.6.0.
Scope of certain dependencies is "compile" for deployment on tomcat,
but "provided" for deployment on tomee.

Build for Tomee:
mvn clean install -Dtomee

Deploy to Tomee:
mvn pluto2:install -DinstallDir=<your apache-tomee-plus-1.6.0 dir>