Update jobs.yml

Adding commande option to output event date and time
Update watcher.py

Adding date and time output for $datetime command option
bug fix and feature add : date and time output for events

Feature add : $datetime added for commands in jobs
Bug fix : Exclusion string was generating a crash while creating directories inside watched path.
Bug fix : Exclusion string was not given to the watcher instance while recursing in directories.
feature add : $datetime for command, event date time output
Merge pull request #13 from Brunus-V/master

Bug fixes and feature add : Event date and time in jobs commands