fixed wc_get_customer_available_downloads() query, closes #6057
Set simplify user agent
Allow extensions to hijack i18n_product_type_alert
Added Nepali Currency and Symbol.
Tab index fix for PYG Currency and Symbol.
Added Lao Kip Currency
Added actions before and after all available downloads

For `my-downloads.php` template file
Simplfy typo
updated the .pot files
stopped deprecated warnings about like_escape() function since WP 4.0
options.include for makepot admin task

Added an `includes` option for the `makepot` task to specify which files should be scanned.
`grunt-wp-i18n` has now support for [options.include](https://github.com/blazersix/grunt-wp-i18n#optionsinclude)
Updated grunt-wp-i18n to 0.4.7 to support options.include
fixed the paypal process_refund() method
added sandbox support for paypal transaction url
Added paypal refund reason/note

cc @mikejolley
Merge pull request #6067 from axistools/NPR-Currency

Added Nepali(NPR) Currency and Symbol.
Merge pull request #6071 from axistools/makepot

options.include is now supported for makepot task
Merge pull request #6064 from thenbrent/product-type-alert

Allow extensions to hijack i18n_product_type_alert
Merge pull request #6072 from woothemes/feature-paypal-transactin-url-sandbox

Add sandbox support for paypal transaction url
Merge pull request #6068 from bryceadams/master

Added Lao Kip Currency & Before / After Downloads actions