5.0.1

• LordCommander is now a standalone python package which can be installed using pip.
• Instead of saving shelve module inside the package directory (.files), it now uses user data folder.
• Renamed module lordcommander to commander as the main package is named LordCommander.
• _create_data_dir() and _read_data() methods are removed from LordCommander class and rewritten as independent functions.
• The shelve module to store data now can be passed from outside of the LordCommander class via constructor, which helps changing module for testing.
• Tests are added, a debt has been paid. More to go.
• Removed lc version command.