Support for php7.1 nullable types#459

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r4ndsen wants to merge 3 commits intospadgos:developfrom

r4ndsen:develop

Commits on May 13, 2018

support nullable types
Werner Spiegel
committed

Commits on May 14, 2018

introduce withNull function
Werner Spiegel
committed
introduce default setting
Werner Spiegel
committed