Updated gradle and android target versions

3.2.3

Updated gradle and android versions. Changed some default values

Added function to change background color (thanks @amankumar367)

Merge pull request #1 from amankumar367/master

Added function to change blur background color

SupportBlurDialogFragment now extends AppCompatDialogFragment

3.2.1

extends AppCompatDialogFragment

Migrated to AndroidX

3.2.0

migrated to androidx and prepared to publish in jitpack