Improve logger:

 log to html file (similar to how Horde3D logs stuff)
Automatically setup logger in __init__.py
Ignore the log output
Add a console handler to the real world example
because it is important to immediately see output for rc allocs
Manually shutdown logger to ensure all log
messages are logged
Do not crash if stream does not exists anymore
Adapt asset manager to make use of the new logger
Do not log debug messages if __debug__ is not def
Merge pull request #6 from ColinDuquesnoy/feature/logger

Feature/logger