upgrade blueimp from 9.8 to 9.18

library/blueimp_upload/server/php/Dockerfile

@@ -0,0 +1,38 @@
+FROM php:7.0-apache
+
+# Enable the Apache Headers module:
+RUN ln -s /etc/apache2/mods-available/headers.load \
+  /etc/apache2/mods-enabled/headers.load
+
+# Enable the Apache Rewrite module:
+RUN ln -s /etc/apache2/mods-available/rewrite.load \
+  /etc/apache2/mods-enabled/rewrite.load
+
+# Install GD, Imagick and ImageMagick as image conversion options:
+RUN DEBIAN_FRONTEND=noninteractive \
+  apt-get update && apt-get install -y --no-install-recommends \
+    libpng-dev \
+    libjpeg-dev \
+    libmagickwand-dev \
+    imagemagick \
+  && pecl install \
+    imagick \
+  && docker-php-ext-enable \
+    imagick \
+  && docker-php-ext-configure \
+    gd --with-jpeg-dir=/usr/include/ \
+  && docker-php-ext-install \
+    gd \
+  # Uninstall obsolete packages:
+  && apt-get autoremove -y \
+    libpng-dev \
+    libjpeg-dev \
+    libmagickwand-dev \
+  # Remove obsolete files:
+  && apt-get clean \
+  && rm -rf \
+    /tmp/* \
+    /usr/share/doc/* \
+    /var/cache/* \
+    /var/lib/apt/lists/* \
+    /var/tmp/*