Optimize configuration file

[aregtech]

Description:

Currently, there are 3 configuration files: router.init, log.init, logger.init. All files use same format. By time, when the list of helper application increase, the number of init files may as well increase. So that, it is important to use universal configuration file and format to save all configuration in a single file, where each application may extract own portion of information. In addition, there are several objects that read the configuration file. For example, the router connection and log setup are done by different objects. To optimize the solution, there should be:

• The configuration should be setup centralized, where each object that needs an information can query and get own list of configuration data.
• The centralized configuration should be able to save data in the file.

[aregtech]

Fixed in PR #262