*** Product CSV Import Suite Changelog ***

2015.04.13 - version 1.9.19
* Fix - Remove chosen.
* Fix - Add total_sales once only.
* Fix - Handle scheduled sales logic.

2015.02.17 - version 1.9.18
* Fix - Post title merge.

2015.02.02 - version 1.9.17
* Fix - JS notice.

2015.01.28 - version 1.9.16
* Fix - Notices.
* Fix - Fix ampersand terms import.
* Fix - Only allow variations to be private or published.
* Fix - When not merging, prevent import if post ID is provided and conflicts.
* Tweak - Support composites, bookings, photography and bundles.

2014.12.11 - version 1.9.15
* Fix - Ensure total_sales is set for new products.

2014.12.09 - version 1.9.14
* Fix merge when only declaring attribute_data and not attributes.

2014.11.18 - version 1.9.12
* Clear attribute table transients after import.
* Correctly import 0 value attributes.

2014.09.08 - version 1.9.11
* When parsing attributes, only send them to the importer if inside the CSV.

2014.08.01 - version 1.9.10
* Export non-visible attributes, or attributes lacking is_visible data.

2014.06.09 - version 1.9.9
* Fix possible notice when exporting images.

2014.06.09 - version 1.9.8
* fixed undefined property on variation export

2014.06.06 - version 1.9.7
* When exporting images, get _product_image_gallery rather than attachments

2014.05.21 - version 1.9.6
* Fix 2.1 file_paths import (2.1 uses downloadable_files).

2014.05.15 - version 1.9.5
* Show notice when mb_detect_encoding is not present

2014.03.31 - version 1.9.4
* Sync variable prices after import

2014.02.06 - version 1.9.3
* Merge empty excerpt/post content if merge empty cells is enabled.

2014.01.29 - version 1.9.2
* Fix class exists check

2014.01.28 - version 1.9.1
* variations were missing tax_class
* export cross sell IDS with pipes
* Fix variation importing

2014.01.14 - version 1.9.0
* Code refactoring
* Added 2.1 support
* Dropped < 2.0 support
* Import crosssells and upsells by sku (crosssell_skus upsell_skus columns)
* Check post name when seeing if a post exists
* Export children of multiple posts for variation export
* Option to merge empty rows, for example, if you want to wipe some attributes

2013.11.18 - version 1.8.3
* GPF Adwords grouping filter and Adwords labels

2013.10.29 - version 1.8.2
* Remove menu_order order for exporting variations - breaks export
* Escape preview column

2013.10.29 - version 1.8.1
* Prevent gzip
* Return errors in fetch_remote_file

2013.10.22 - version 1.8.0
* Check for 404 on image fetch
* Removed url_remap code - unused
* Moved thumbnail regeneration to the end of import to reduce risk of failed imports

2013.10.14 - version 1.7.4
* Better slug generation for nested categories.

2013.10.12 - version 1.7.3
* Trim filenames when importing images

2013.10.10 - version 1.7.2
* Image naming tweaks

2013.10.10 - version 1.7.1
* Fix gallery import

2013.10.06 - version 1.7.0
* include_hidden_meta option added to variation export
* Improved category import logix
* Fixed notices
* Tools added to system status to delete products and variations

2013.10.04 - version 1.6.5
* Added merging check to post type check

2013.09.26 - version 1.6.4
* Check post type on inport
* Extra debug
* Fix post status changes

2013.09.26 - version 1.6.3
* Set _product_image_gallery
* Allow images to imported from wp-content/uploads/product_images

2013.09.14 - version 1.6.1
* Fix term hierarchy where there are multiple terms with the same name

2013.09.10 - version 1.6.1
* Added support for subscription/variable subscription product types

2013.08.19 - version 1.6.0
* Ability to export variations for a specific product by ID
* Fixed support for non-comma delimiters
* Export foreign term names in editable format

2013.08.07 - version 1.5.0
* Fix b/w compat for variation prices
* Merge image logic error
* Fire ajax requests one after the other to prevent duplicates e.g. categories
* Automatically convert attribute terms for variations to slug format

2013.08.05 - version 1.4.1
* Fix parent import/backfill parents when parent ID is 0

2013.07.30 - version 1.4.0
* Export hidden fields option
* Export serialised data in json format + import it back.

2013.07.11 - version 1.3.11
* Only export Google Product Feed fields if selected.

2013.07.10 - version 1.3.10
* Allow import of 0 values.

2013.07.08 - version 1.3.9
* Add slashes to fix Windows file paths.

2013.06.21 - version 1.3.8
* Export improvements (reduction in memory usage)

2013.06.19 - version 1.3.7
* Remove file exists check for IIS users

2013.06.07 - version 1.3.6
* Prevent final rows from being duplicated

2013.06.07 - version 1.3.5
* Supress wpdb errors
* Fix importing < 10 rows
* When importing variations, clear parent price to trigger recalc

2013.06.03 - version 1.3.4
* Fix sanitization of file name

2013.06.03 - version 1.3.3
* Fixed mapping field values

2013.05.29 - version 1.3.2
* Improved mapping option labelling
* Fixed merge when post_title is not available
* Fixed mapping

2013.05.28 - version 1.3.1
* Post_parent tweak to support 0
* Filters for developers

2013.05.20 - version 1.3.0
* Ajax to prevent timeouts and memory outage
* New import progress interface

2013.05.10 - version 1.2.6
* post_author merge/import fix.

2013.05.03 - version 1.2.5
* Export/import post author

2013.05.03 - version 1.2.4
* Export term hierarchy

2013.04.30 - version 1.2.3
* Fix attribute position
* Fix handle_upload

2013.03.25 - version 1.2.2
* Fix _file_paths

2013.03.19 - version 1.2.1
* Alt attribute set for uploaded images.
* Fallback for _regular_price and variations

2013.03.08 - version 1.2.0
* Fix variation prices upon import

2013.01.11 - version 1.1.9
* Fix for when attribute_data is parsed before attribute

2013.01.11 - version 1.1.8
* WC 2.0 variations export compat

2013.01.07 - version 1.1.7
* Fixed some notices

2012.12.30 - version 1.1.6
* Fixed CUSTOM attribute export

2012.12.16 - version 1.1.5
* Fix parent sku export

2012.12.16 - version 1.1.4
* Don't set publish status automatically on merge.
* Only update if postdata size > 1
* Cleaned up error messages for variation import failure.
* Export parent_sku

2012.12.13 - version 1.1.3
* Fix attribute export
* 3.5 fixes

2012.12.05 - version 1.1.2
* Support exporting yoast SEO fields

2012.12.04 - version 1.1.1
* New updater

2012.11.21 - version 1.1.0
* Fix URLs to images with spaces
* Consistant columns during export (based on Jason Judge's patch)
* Support relative stock updates during merge, e.g. (+)10, (-)2
* Ensure post_status is lowercase and valid.

2012.11.07 - version 1.0.31
* When importing variations, allow blank columns (to support 'all' attributes)

2012.10.11 - version 1.0.30
* Allow https image import

2012.10.11 - version 1.0.29
* product_exists() check should check SKU and title independently

2012.10.11 - version 1.0.28
* Add timestamp to logs

2012.10.05 - version 1.0.27
* Parent notices fix

2012.10.03 - version 1.0.26
* Fix for multiple category import

2012.09.29 - version 1.0.25
* Don't set defaults on merge

2012.09.17 - version 1.0.24
* Search sku in pending and future posts
* Optimisations
* Support 1.7 file_paths

2012.09.12 - version 1.0.23
* Fixed attribute/type import

2012.09.11 - version 1.0.22
* Maintain case for text based attributes
* Change taxonomy term logic to insert terms more accurately

2012.08.28 - version 1.0.21
* Fixed merge bug

2012.08.28 - version 1.0.20
* When importing Images (merge) skip existing images based on basename and URL
* ini_set( 'auto_detect_line_endings', true ); to support other line endings such as windows

2012.07.25 - version 1.0.19
* When checking SKU, look at drafts and private products too
* Export and import default_attributes for variable products

2012.07.25 - version 1.0.18
* Fix variation import err return
* Wipe out min_variation_price so they are regenerated after import

2012.06.28 - version 1.0.17
* New variation column parent_sku - as an alternative to defining post IDs

2012.06.28 - version 1.0.16
* backfill_attachment_urls tweak
* removed potentially slow post_exists function
* Use product title for image titles
* Support importing a CSV that is on the server

2012.06.20 - version 1.0.15
* Added more filename detection for image URLS

2012.06.07 - version 1.0.14
* Fixed parser
* gpf product_type

2012.05.26 - version 1.0.12
* Improved memory handling during parse

2012.05.26 - version 1.0.11
* Improved memory handling during import
* Option to choose delimiter

2012.05.26 - version 1.0.10
* Mapping fix for product type
* Mapping fix for GPF data
* Fix for merging variable

2012.05.25 - version 1.0.9
* Strtotime for sale price dates
* Added sale price dates to export
* Export Google Product Feed Data

2012.05.24 - version 1.0.8
* Support comment_status column
* Support post_name (slug) column
* Merging will import if a sku/post ID is not defined or not found.
* If a product attribute does not exist, add it!

2012.05.21 - version 1.0.7
* Reverted _regular_price change and fixed _price parsing

2012.05.20 - version 1.0.6
* Wrap all columns with quotes
* price should be regular_price for variations
* Local upload tweaks

2012.05.20 - version 1.0.5
* Missing format_data_from_csv function in class

2012.05.19 - version 1.0.4
* Fix variation import after mapping
* Format dates to mysql format
* Only encode utf-8 if csv is not utf

2012.05.18 - version 1.0.3
* Fix for empty property error

2012.05.16 - version 1.0.2
* Moved ID column to prevent excel #failing (SYLK)
* Removed post_title requirement for variations
* wp_upload_dir fix
* exists check takes sku into consideration

2012.05.14 - version 1.0.1
* Detect and set locale
* Product type check fix

2012.05.10 - version 1.0
* First release