Otter Grade Dockerfile Added wget

- wget added to Dockerfile for backwards compatibility with autograder.zip files generated with otter-grader version 4

CHANGELOG.md

@@ -1,6 +1,15 @@
 # Changelog
 
+<<<<<<< HEAD
 **v5.6.0(unreleased):**
+=======
+**v5.5.2:**
+
+* added wget to grade/Dockerfile -- this allows otter-grader version 4 generated autograder.zips to work with
+otter-grader version 5 
+
+**v5.5.1:**
+>>>>>>> 06f0ddeb (Otter Grade Dockerfile Added wget)
 
 * final_grades.csv: notebook name is the file name for each row instead of the full path to the notebook and the rows are sorted by notebook name
 

otter/grade/Dockerfile

@@ -4,7 +4,7 @@ FROM ${BASE_IMAGE}
 ARG DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update && \
-    apt-get install -y curl unzip dos2unix && \
+    apt-get install -y curl unzip dos2unix wget && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/* /var/tmp/*