socket.io client update

updates socket.io client to v0.2.2

Bugfixes

Addresses #21 by allowing for any valid character in event names.
Ensures thread safety on the socket.

SIOParameterArray Restructure

Changes

Restructures -[on:event:] and -[emit:args:] to use an array-based argument structure.
Adds support for sending NSData objects as Blobs.
Addresses:

• #17
• #14
• #13

v0.1.0

Update to Socket.IO 1.1.0

v0.0.3

Replaced occurrences of do in method names.
Updating the podspec to be valid to push to Cocoapods Trunk.
Adding close (socket) method.