Adding delay between retry on error in worker
Adding a mecanism to reconfig dynamically the worker (webservice "reconfig")
New file for reconfigurable values
Update version number, forgotten since last update
Set up a way to reload config value that are not core system.
Use a singleton class and a config.ini file
Move non vital settings into the config.ini reloadable file.
Change the setting/config mecanism.
Singleton config must be initialized soon in the process
Replace using settings with SingletonConfig
- config data is called via Singleton() which gives the proper instance
- a web service is added to reload the singleton config
Changes in worker config values
comment
Fix updateCommandApply in dispatcher
Use of undefined var in error handling cause python error in log.
Change singleton config
Use python module mecanism for singleton loading/reloading and accessing
Del unused import
Add comment to fix ramInUse webservice
Add retry control to worker
When an updateCmdWatcher request fails, it is resent MAXRETRY times with a DELAY, if all attempts fail, we remove a potentially stalled command.
Merge branch 'feature/worker_requests_delay' into develop

Conflicts:
	Puli/src/octopus/dispatcher/dispatcher.py
	Puli/src/octopus/dispatcher/model/rendernode.py
	Puli/src/octopus/dispatcher/webservice/webservicedispatcher.py
	Puli/src/octopus/worker/worker.py