Adding base class

Creating a parent class for handling os specific settings.
Adding inheritence

Adding inheritance from base class to use a property to store how directories are separated by each operating system (linux osx windowz).
Bug fix

Adding the local directory we're ultimately extracting to back into the logic for finding missing files.
Merge branch 'debugging-get-directory-structure'

Conflicts:
	ftpSync.py
Merge branch 'debugging-get-directory-structure' of https://github.com/m4l1c3/Python-FTP-Sync into m4l1c3.development

Conflicts:
	ftpSync.py
Removing unused libraries

Removing references to sys and operator