revised wc_get_product_terms to allow override with args
return thumb size of variation image on upload
added delete variation image to be more specific
fixed a little typo in add-ons page
added check to make sure thumbnail url exists otherwise fallback to main url
fixing danish krone symbol
Fixes performance degredation on large wp_options tables
Use regex instead of DOM module to get avatar URL
Empty return value should be null
Removed unused TinyMCE button
Added  parameter to get line subtotal filters
Merge pull request #5541 from splashingpixels/revise-term-function

[2.1] revised wc_get_product_terms to allow override with args
Merge pull request #5544 from splashingpixels/variation-image

return thumb size of variation image on upload
Merge pull request #5546 from claudiosmweb/fix-little-typo

[2.1] Fix a little typo in add-ons page
Merge pull request #5548 from BFTrick/danish-currency

[2.1] Fixing Danish Krone Symbol
Merge pull request #5550 from PlacidBox/master

[2.1] Fixes performance degredation on large wp_options tables
Merge pull request #5559 from coenjacobs/refactor-get-avatar-url

Use regex instead of DOM module to get avatar URL
Merge pull request #5560 from woothemes/remove-tinymce-button

Removed unused TinyMCE button
Merge pull request #5562 from coenjacobs/order-item-subtotal-hooks

Added  parameter to get line subtotal filters
added validation for country code in tax settings, closes #5180