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Update README.md
Check instance for object instead of checking class name
Removed else part
Merge pull request #16 from newage/hotfix/1.0.2

Checking of instance object instead of checking class name.

Thanks to @newage
Merge remote-tracking branch 'origin/master' into feature/multipleProviders

Conflicts:
	src/OrgHeiglHybridAuth/UserWrapperFactory.php
	tests/OrgHeiglHybridAuthTest/UserWrapperFactoryTest.php