message: Updated Dockerfile to use builder-image-part1 and improved copy steps from build volume
diff: ### At first perform source build ###
  -FROM spectreproject/spectre-builder-part2:latest as build
  +FROM spectreproject/spectre-builder:latest as build
  MAINTAINER HLXEasy <hlxeasy@gmail.com>
  # Build parameters
  @@ -15,7 +15,6 @@ RUN cd /spectre \
  && ./autogen.sh \
  && ./configure \
  --enable-gui \
  - --with-qt5=/usr/include/x86_64-linux-gnu/qt5 \
  && make -j${BUILD_THREADS}
  ### Now package binaries into new image ###
  @@ -23,7 +22,7 @@ FROM spectreproject/spectre-base:latest
  MAINTAINER HLXEasy <hlxeasy@gmail.com>
  COPY --from=build /spectre/src/spectrecoind /usr/local/bin/
  -COPY --from=build /spectre/src/spectre /usr/local/bin/
  +COPY --from=build /spectre/src/spectre /usr/local/bin/spectrecoin
  USER spectre
  