Merge branch 'master' into 'master'

Master

See merge request !1

people/urabenstein.md

+---
+layout: person
+title: Ulrich Rabenstein
+fullname: Ulrich Rabenstein
+affiliation: Computer Science, FAU Erlangen-Nürnberg
+pic: public/images/urabenstein.jpg
+account: urabenstein
+role: master-student
+start_date: 2016-10
+end_date: 2017-07
+---
+ I have written my master thesis as a member of the KWARC group. My task was to detect quantity expressions in STEM-documents and to build useful semantic services.