Reorder docker build

We need to do "girder build" after copying the girder config.  The
annotation plugin has to be added after "girder build" because it
accesses the database on first import (we should change that).

devops/girder/Dockerfile

@@ -13,12 +13,12 @@ WORKDIR /src/large_image
 RUN pip install -e .[all] -r requirements-test.txt --find-links https://girder.github.io/large_image_wheels
 RUN pip install girder[mount] girder girder-user-quota
 # RUN pip install .[all] ./girder[tasks] girder[mount] --find-links https://girder.github.io/large_image_wheels
+
+COPY ./provision.py /src/provision.py
+COPY ./girder.cfg /etc/girder.cfg
 RUN girder build
 
 COPY plugins/AnnotationPlugin /src/AnnotationPlugin
 RUN pip install -e /src/AnnotationPlugin
 
-COPY ./provision.py /src/provision.py
-COPY ./girder.cfg /etc/girder.cfg
-
 ENTRYPOINT ["bash"]