src/template is redundant now with src/create-module.py.  create-module.py seems to be a better solution since the modulename can be specified and the files are auto-generated.  

1) make create-module.py auto-generate the test skeletons such as found in src/template
2) fix the section on the ns-3 manual to refer to a module generated by create-module.py
3) hg remove src/template