Now mass_deploy is able to stop when slim fails indicating on wich action slim fails
Bufixing webui conf edition

Before when session restore fails the webui was answering "Unknown status 200" as content.
Now it produce 2 log messages (maybe)

broken nginx conf + absolute path in slim that is known only at build time

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 to remove all database prefixed by MONGODB_DB_PREFIX (in the conf of mass_deploy script)

using --plugin option instead of uwsgi_python3 shortcut (can be uwsgi_python34 etc)

Now we can run tests from the tarball generated by make dist

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

Forgotten file was the PID list file
The bugfix concerns the conf when selection mongodb as datasource (quick & dirty solution : keep dummmy_datasource loaded so we don't have to modify the original datasource conf)

https://docs.mongodb.com/v2.4/reference/user-privileges/
https://docs.mongodb.com/v2.4/reference/privilege-documents/

Adds a LODEL2LOGDIR to buildconf.py
Adds a nginx-conf option to slim
...

Now create an INSTANCE_NAME.sock in @localstatedir@/uwsgi_sockets
Note : the localstatedir is wrong -_- /usr/var instead of /var........

It a real buildtime variable, the localestatedir

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...

Using execl instead of fork to preserv the pid

Bugfixe in start
implements stop
add info in instance details

On configuration setter

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

Deleted the json "db" of slim.py : progs/instances.json
Add features to SLIM :
- interface configuration editing from CLI
- better listing

solves #145

when a value is composed only with space tabs etc consider it as None