Create de-jens.md (#45)

contributors/de-jens.md

@@ -0,0 +1,11 @@
+2016-08-11
+
+I hereby agree to the terms of the Contributors License
+
+I furthermore declare that I am authorized and able to make this
+agreement and sign this declaration.
+
+Signed,
+
+Jens Schäwel
+https://github.com/de-jens