Fixed EOPRunner
Merge pull request #344 from vnastase/master

Fixed EOPRunner
Fixed EOPRunner
Merge pull request #345 from vnastase/master

Fixed EOPRunner
Added comment in LAPRunner
Merge pull request #346 from vnastase/master

Added comment in LAPRunner
Update README.md
Change the mechanism to manage the created models.

This update has been requested by GN and this is his description:

Our current strategy  is that if a model file XXX specified  in the config file with same name exists, we first copy the old XXX to XXX_old.
If XXX_old already exists, we delete it, and then rename XXX to XXX_old, so that we always keep only one XXX_old.
The latter just to be on the save side and save at least the latest existing model file of same name as that used in the  config file.