US05: Add CreateFile class and modify methods in FileManager
US05: Update comments for File manager
Adding code refactoring, based on all observation made over last pull
request from iterationOne to master
US05: Modify comments according code review notes
refactored to pep8, there were some rules not yet applied like W293
Addign fix for US03, right click to perform multiselection, tab to
perform multiselection, backspace to move to parent folder.

NOTE: documentation to new methods was not added yet.
US05-Modify methods documentation
Refactoring tree view class, included a new class object to handle
connections.
Merge branch 'US05-SQ-02' of https://github.com/jafi666/pyCommander into origin/US-05SQ-02
Merge branch 'origin/US-05SQ-02' into US-03JG-Refactoring
merge with US05, refactored with config file usage
Adding updates to meet the last observations in the code review.
US05: Unit test, update documentatio of methods
last updates
Merge pull request #8 from jafi666/US-03JG-Refactoring

Us 03 jg refactoring