Bug fixes

Adds care_user and care_fields sub-modules. Other minor improvements and fixes.

Notable changes since Alpha1:
#3027848 by gmrossello, gausarts: Wrong output dimensions for non-responsive SVG images
#3026114 by thalles, gausarts: Drupal dependency injection on BlazySettingsForm
#3029990 by GGH, gausarts: Add { minified: true } to already minified libraries for advagg
#3030538 by didaka, gausarts: Wrong oEmbed link url for media filed with multiple values
#3026135 by thalles: Unused variable on BlazyFormatterTest
#3025273 by mahtab_alam: There are many unused variables which should be removed

Notable changes since Alpha1:
#3025835 by DrupalZone, thalles: Coding standards
#3025368 by thalles, oknate: Replace usages of the deprecated drupal_set_message() function
#3025321 by thalles: Use function t()
#3025145 by thalles: Dependency injection on Form/SlickSettingsForm

Fixed for PHP 5.6 compatibility.

Fixed for PHP 5.6 compatibility.

Fix problems with integrity validation during entity form save operation.