Merge branch '8.x-1.x' of https://git.drupalcode.org/project/ief_popup into 8.x-1.x

* '8.x-1.x' of https://git.drupalcode.org/project/ief_popup:
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  Revert "Issue #3271717 by alt.dev: getEntity() method throws error for the Block Content entity"
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  Revert "Issue #3271717 by alt.dev: getEntity() method throws error for the Block Content entity"
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  Revert "Issue #3271717 by alt.dev: getEntity() method throws error for the Block Content entity"
  Issue #3271717 by alt.dev: getEntity() method throws error for the Block Content entity
  Little fixes
  Visual optimizations
  * Little optimlization so that Complex widget variantions are accepted * CSS optimization to prevent the blurry effect in the Dialog
  support for Table View Mode support for user entity

# Conflicts:
#	ief_popup.module