1.0.0-beta.3

Implement following changes based on customer feedback:

• Add setting to allow automatic stripping off leading 0s from order number before it's being sent to the parcelLab API. (This is a feature required by some of our customers, based on the way they transmit their order numbers to us)
• Display date of when the last update for a tracking has been received
• Display external link icon to make it more obvious for the user that the order status row is a link