Added missing dependencies for ocropus.

Dockerfile

@@ -26,6 +26,8 @@ RUN apt-get update && \
     poppler-utils \
     python2.7 \
     python3.6 \
+    python-pip \
+    python-tk \
     tesseract-ocr \
     wget
 
@@ -54,6 +56,7 @@ RUN wget -nv http://github.com/tesseract-ocr/tessdata_best/raw/master/deu.traine
 RUN git clone http://github.com/tmbdev/ocropy && \
     cd ocropy && \
     apt-get install -y --no-install-recommends $(cat PACKAGES) && \
+    pip install -r requirements.txt && \
     wget -nv http://www.tmbdev.net/en-default.pyrnn.gz && \
     mv en-default.pyrnn.gz models/ && \
     python2.7 setup.py install && \

parse_hocr

@@ -39,5 +39,5 @@ for input_file in input_files:
         output_file.write('            </p>\n')
 output_file.write('        </body>\n' +
            '    </text>\n' +
-           '</TEI>\n')
+           '</TEI>')
 output_file.close()