Merge branch 'master' into 'add_veganMealCounter'

doc/reports/sprint-reviews/20190225_sprint_review.md

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+
+# Sprint Review
+
+## Main problems  Encountered
+
+We have no problems so far. Everyone arrives on time and does the tasks assigned to them.
+
+## Adjustments from previous sprints
+Since this is the first review, there are no previous sprints yet
+
+## Adjustments for next sprint
+ - Keep up the good work!

doc/reports/sprint-reviews/20190311_sprint_review.md

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+
+# Sprint Review
+
+## Main problems  Encountered
+
+### Problem 1: Kristin left the group
+Kristin does not continue CSE and left our group. We'll work with five people from now on.
+
+## Adjustments from previous sprints
+We created the backlog before the sprint, which helps making clear what we're working on.
+
+## Adjustments for next sprint
+ - Group made out of five
+ - Backlogs ready on time

doc/reports/sprint-reviews/20190318_sprint_review.md

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+
+# Sprint Review
+
+## Main problems  Encountered
+
+### Problem 1: Daan will quit CSE
+Since Daan will quit the study, we'll work with four people from now on 
+
+## Adjustments from previous sprints
+If we start working on the demo a bit earlier and do a little less research, we'll have 
+a little less stress in the end.
+
+## Adjustments for next sprint
+ - Group made out of four
+ - Start implemention a bit earlier
+