Adds remembering of the locale before an asynchronous task is run.
Sets the remembered locale when an asynchronous task is run.
Added custom mailer selection.
Refactored custom mailer selection.
Added tests for custom mailer selection.
Update Devise dependency to ~> 3.2
Token authenticatable strategy has been removed in Devise 3.2.0
Merge pull request #39 from baschtl/add-support-for-multiple-mailers

Add support for multiple mailers
Merge pull request #43 from rymai/update-devise-dependency

Update Devise dependency to ~> 3.2
bump to 0.9.0 and update changelog
Merge branch 'master' into fix-locale-not-recognized

Conflicts:
	lib/devise/async/backend/base.rb
	test/devise/async/backend/base_test.rb
Merge pull request #1 from baschtl/fix-locale-not-recognized

Fix locale not recognized when sending mails asynchronously