*** Xero Integration ***

2014.04.04 - version 1.4.4
 * Changed <Date> to be the date of the order, not date order is transmitted to Xero

2014.04.03 - version 1.4.3
 * Moved <Phones> element to be child of <Contact> element.

2014.02.13 - version 1.4.2
 * Fixed XML error 'Input string was not in a correct format.' when Tax is $0
 * Moved invoice and payment sending to 'woocommerce_order_status_completed' so that the order is complete before
   creating the invoice in Xero. This is so that redirect gateways like PayPal Standard won't create invoices on
   orders that are never paid for.

2014.01.27 - version 1.4.1
 * Verified compatibility with WooCommerce 2.1
 * Updated tax calculation with inclusive tax. <TaxAmount> element is now sent with the <LineAmount>

2014.01.15 - version 1.4.0
 * Branding change
 * Fixed localization to use 'wc-xero'
 * Fixed private/public key indicators turning green when path exists, but no file given.

2013.05.21 - version 1.3.3
 * Fix for inclusive tax
 * Removed Cart Discounts from being sent with invoice to Xero

2013.05.21 - version 1.3.2
 * Fix for "Cannot redeclare wc_ups_plugin_links()"
 * Fix for compatibility with Dynamic Pricing
 * Fix for rounding amounts to two digits

2013.03.22 - version 1.3.1
 * Add check for key files in Xero admin page. Green - file found. Red - file not found.
 * Removed unused "Sales Tax Account" from settings.
 * Fix for "PHP Warning:  Illegal string offset" in Order Edit page in the admin.
 * Fix for "A validation exception occurred Detail: One or more line items must be specified" in WC 2.x
 * Fix for inclusive tax line amount
 * Fix for ampersand (&) in billing and shipping information fields
 

2013.02.12 - version 1.3.0
 * Verified compatibility with WooCommerce 2.0
 * Added setting to be able to turn off SKU (Inventory Items) from being sent in invoices
 * Added ability to manually send invoices and payments from Edit Order page
 * Fixed <Date> and <DueDate> fields to use current H:M:S to prevent OAuth error
 * Fixed issue with VAT

2013.01.07 - version 1.2.1
 * Added support for Sequential Order Numbers Pro

2012.12.10 - version 1.2
 * Fix for qty calculation for tax included and tax excluded. Also, fix for validation errors.
 * Added SKU field to be used as <ItemCode> for reduction of inventory in Xero.
 * Added <CurrencyRate> to Payment XML to support WC stores using different currency from Xero account currency.

2012.12.04 - version 1.1.1
 * New updater

2012.09.28 - version 1.1
 * Added checkbox to enable/disable sending payments to Xero.  Payments may need to be turned of if they are synced via a separate integration such as PayPal.

2012.07.26 - version 1.0
 * Initial Release
