Adds small wait after adding an item to the cart
Always lowercase any product before being added to targets
Adds support for multiple products but no quantity support
Adds exception handling for sold out products
Adds commented out buyer.run() to sale_watch to help with dry runs.
Adds exception handling for billing page sold out items
Moves exception handling into private method, add calls from shipping/billing/checkout
Only check exactly html file for product match
Adds bool return to oos handler, checks for oos message while adding products to cart
Adds click arg to oos handler to determine when not to click to follow through
Ignore retweets or messages
Makes checkout live by setting dry_run to False
Merge branch 'release/0.2'