Remove duplicate install templates directories (the same directories can be used by SLIM & runtest)
Addapted runtest so it can fetch the install template from the lodel2 datadir
Make lodel_admin.py runnable (add the python3 shebang + chmod +x at install-data target)
And a beautifull ASCII formating for the README

Allow generating a tarball that can compile and run lodel2 + deletion of unwanted Makefile.in files

Bufixes in start & stop functions
Add a -f --foreground option allowing to run an instance in foreground
There is one problem left : the unix socket creation is not done in the instance directory...

SLIM is now able to edit configuration from CLI, to start instances etc.