1.4.0: Image Tagging with Azure

Added

• Image tagging via Azure Computer Vision (props @ryanwelcher via #125)
• Search images by alt text and tags (props @helen via #134)
• Hooks to catch alt text and image tags being returned from Azure (props @ryanwelcher via #125)
• Plugin debug information within WordPress's Site Health Info screen (props @johnwatkins0 via #108)
• Show a notice if you're running a development version of the plugin (props @helen via #144)

Changed

• Enable comma delimited list of Post IDs in WP CLI command for Watson NLU bulk language processing (props @adamsilverstein via #55)

Fixed

• Provide backup behavior when full-sized image is greater than the maximum size accepted by Azure Computer Vision (props @johnwatkins0 via #110)
• Don't show the admin menu alert when NLU is unconfigured (props @helen via #142)