0.6.0

The latest release of PySoundFile cleans up many small
inconsistencies, particularly in the the ordering and naming of
function arguments. Therefore, old code will probably not work any
more.

It also adds a number of great new features, such as global read
and write functions that do not require you to open a
SoundFile, or a blocks function that can read a sound file one
block at a time. It has also grown a lot more flexible and powerful at
opening things like streams, buffers, or file descriptors.

With all these improvements, we feel that the indexing interface is
not needed any more. It is now officially marked as deprecated and
might be removed in the future.

A big, big thank you to Matthias Geier, who did most of the work!

Changes:

• Switched to float64 as default data type.
• Function arguments changed for consistency.
• Added unit tests.
• Added global read(), write(), blocks() convenience
  functions.
• Documentation overhaul and hosting on readthedocs.
• Added 'x' open mode.
• Added tell() method.
• Added __repr__() method.