Add Template for RTA dynamic class loading

* Now load DynamicMarking class in memory
* This almost works but it wont' work with mvn exec:java on the cmd line
* Posted SO question
  http://stackoverflow.com/questions/21350265/dynamic-class-compiling-and-loading-with-maven
Fix maven exec:exec issues in pom for RTA
Update readme to use exec:exec
Bump version number 4.3.2