Changed initial logging, and added a functional example

[tavurth]

Hi I fixed a logging error "No logger available for pyoanda", and changed the data grabbing example to be more useful (With comments)

[toloco]

Can you check why travis says no? it looks like something it is wrong in the code.

Thanks,

[toloco]

Here you are defining a logger instead of getting the defined logger, we should use this approach in case of global logger doesn't exists.

[tavurth]

• Updated the example to Python 3.x

As we can see below logging.basicConfig actually initialises the logging features, which removes a warning message when using Python 2.x

logging.basicConfig([**kwargs])
Does basic configuration for the logging system by creating a StreamHandler with a default Formatter and adding it to the root logger. 

The functions debug(), info(), warning(), error() and critical() will call basicConfig() automatically if no handlers are defined for the root logger.

https://docs.python.org/2/library/logging.html#logging.basicConfig

[coveralls]

Coverage increased (+0.04%) to 69.861% when pulling 7e587e9 on tavurth:develop into a4c61b3 on toloco:develop.

[coveralls]

Coverage increased (+0.04%) to 69.861% when pulling a999a8b on tavurth:develop into a4c61b3 on toloco:develop.

[coveralls]

Coverage increased (+0.04%) to 69.861% when pulling d728b26 on tavurth:develop into a4c61b3 on toloco:develop.

[toloco]

Thanks mate, it looks much better.

Just one very little think, can you make sure it is compliant of PEP8 too? let me know if this is too annoying...

[tavurth]

Hey, I don't have a PEP8 verification method. Perhaps you know of one?

[toloco]

Yay!
Not a big deal you can use the pep8 package (https://pypi.python.org/pypi/pep8).

Thanks,

[coveralls]

Coverage increased (+0.04%) to 69.861% when pulling 8583fbc on tavurth:develop into a4c61b3 on toloco:develop.

[toloco]

@tavurth thanks for your contribution