Update version number to 0.2
Update version number in setup.py
Fix 'arg' check
Accept multiple path elements in the 'path' function
Add basic examples: 'debug', 'imports' and 'paths'
Override '__getattr__' method in the Settings
Refactor 'arg' function
Remove "settings" function
Set docstring for "path" function
Set docstrings for check functions
Fix for-if in "arg" function