added set_player_name function

You can set the player's name
added new function information
Added position  to get_current_track_info method
Extended mute to also get mute stautus

If not argument provided it returns the current mute state. Same model
as Volume, Bass, Treble.
Merge pull request #30 from DPH/master

Extended mute to also return current mute state
Merge pull request #28 from KennethNielsen/add_position_to_get_current_track_info

Added position  to get_current_track_info method
Merge https://github.com/scottgwaters/SoCo

Conflicts:
	soco.py
Add IRC information
Add IRC information
Add IRC information
Add IRC information
Fix for Volume (0) Bug (Issue #29)

Used None as default value rather than False as sugested by Kenneth
Nielsen.
Also made same change to Bass and Treble, and removed a duplicate item
in doumentation.
Merge pull request #32 from DPH/fix_volume_0

Fix for Volume (0) Bug (Issue #29)
create empty sphinx doc using `sphinx-quickstart`
very simple Sphinx-based documentation