Moved all test programs to the test/ folder
Update makefile generation for the Java1.5 backend (fixes #18)

- Remove building the latex doc by default
- uses Common.Makefile to buld the makefile
Make travis run the test with the Java1.5 backend

- Update the system testing program to run the test with the Java1.5
  backend
- Update the travis confing to install openjdk, JLex and Cup and set the
  CLASSPATH

Note that we are testing the java 1.5 backend with rpenjdk6. This is not
a mistake, version 5 is not available as an apt package anymore...

(progress on issue #5)