Adding additional php library files
Starting Buy Product page

Added stored procedure to get product and buyproduct.php
Updating README with additional installation instructions
Updated DB to include reserved stock info
Added dummy VendComm class

This class communicates with the open websockets to the vending machines.
Non complete changes to buyproduct.php so can rename repo!
Buy product integration with PayPal

Now integrates with PayPal sandbox, uses hard coded values.
Also added basic vendproduct.php which retrieves transaction details from
PayPal.

Need to move PayPal settings to common.php and sort out vendproduct.php
Moved local settings to config.php
Updates to DB structure and added Stored Proc
Finished (basic) buy product page, update TODO
Add transaction check to buyproduct.php

Checks for pending transactions older than a day and cancels them.
Also frees associated reserved stock
Updated config and common files
Vend Product now checks transaction details with PayPal
Vendproduct.php is complete, vends and integrates with paypal
Started websocket code.

Basic "hello world" completed, will allow connections from vending
machine controllers, ask them their machine ID and status.

Will need a full rewrite now to implement the OSV Websocket Protocol
Final updates for V1
Adding .gitignore
Merge branch 'master' of github.com:NottingHack/osv_gateway