[ci skip] 4.1.5->4.1.6 prepare release 4.1.6

Open Identity Platform Community

10.06.2018 56cb7a0d9006f171615efc3edfc5fd32b4adcd7d

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[submodule "forgerock-parent"]
    path = forgerock-parent
    url = https://github.com/OpenIdentityPlatform/forgerock-parent.git