Issue #2764431 by LewisNyman: Composer require doesn't work
Issue #2111201 by plopesc: Can't change machine name but it can be edited in the optionset form
Issue #1580902 by yang_yi_cn, rooby, kenorb, wiktorb, Spry_Julia, jonathan_hunt, emanaton: Allow the use of the flexslider callback functions?
Minor change that adds the configure link to the modules page.
Fixes bug in flexslider api when id given without optionset.
Merge branch '8.x-2.x' into 8.x-responsive
Issue #2627692 by amaria: no alt text on nav thumbnail images
Issue #2666378 by amaria: Thumbnail Caption Option Stays Active When Not using Thumbnails
Fixes bug when searching for fallback image src.
Issue #2665664 by amaria: Decouples the trait from image formatters.
Issue #2665664 by amaria: Adds a flexslider responsive field formatter.
Adds uninstall function to remove image style configuration so that module can be reinstalled.
Clean up entire codebase to Druapl coding standards. Fixes bug in formatter with saving caption
Fixes bug in the code that switches the library to unminified version.
Fixes problem with upper/lower case sample file extensions. Puts example module in the correct package.
Ports the flexslider_example module to D8 with some new features.
Fixes flexslider field formatter in views. Adds/Uses defaults class containing true library defaults
Fixes bugs when saving the views options form, and saving the controlNav option
Removes the debug description in the flexslider field formatter
Upgrades Flexslider tests and fixes the problems found. And more cleanup.
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