Config file parsing routine update and resource files refresh

[jesusnac]

String operations during config file parsing have been replaced by a more robust regular expression logic routines.

DeleteRotateFile and ShredIt functions have been also refreshed so DeleteRotateFile returns an integer value to identify if it has been able to complete the operation and program can continue with the process.

Additionally Spanish literals has been updated with the new pull request update. Other literals on resource files have been added as required.