Use DependentBundleInterface to define dependency on HWIOAuthBundle (p…

…imcore#67)

* Use DependentBundleInterface to define dependency on HWIOAuthBundle

* Target Pimcore 5.1.2 including pimcore/pimcore#2517

Updated Pimcore Core Version

[LinkActivityDefinitionLinkGenerator] return empty string when no lin…

…k is set

move TerminateListener to NewsletterTerminateListener as it is only n…

…eeded when newsletter services are enabled

newsletter sync: avoid multiple executions of immidiate async queue c…

…md calls by collectiong them and only execute it once for each customer+operation in the kernel.terminate and console.terminate events

Merge remote-tracking branch 'origin/master'

DefaultCustomerProvider getList should consider class overriding - fixes

 pimcore#73

HWIOAuth bundle Changes

getResponse() -> getData()

added HttplugBundle as depedency since it is required for latest hwi/…

…oauthbundle versions

remove unneccessary getter