Update the Dockerfile.

We updated our build tools and stuff, so we have to update the
Dockerfile. Took this opportunity to also update the version of
Ubuntu we were using as the base.

Dockerfile

@@ -1,18 +1,18 @@
-FROM ubuntu:17.04
+FROM ubuntu:17.10
 
 RUN dpkg --add-architecture i386 && \
     apt-get update -y && \
     apt-get install -y software-properties-common && \
     apt-get update -y && \
-    apt-get install -y libc6:i386=2.24-9ubuntu2.2 libncurses5:i386=6.0+20160625-1ubuntu1 libstdc++6:i386=6.3.0-12ubuntu2 lib32z1=1:1.2.11.dfsg-0ubuntu1 wget openjdk-8-jdk=8u131-b11-2ubuntu1.17.04.3 git unzip && \
+    apt-get install -y libc6:i386=2.26-0ubuntu2.1 libncurses5:i386=6.0+20160625-1ubuntu1 libstdc++6:i386=7.2.0-8ubuntu3.2 lib32z1=1:1.2.11.dfsg-0ubuntu2 wget openjdk-8-jdk=8u171-b11-0ubuntu0.17.10.1 git unzip && \
     rm -rf /var/lib/apt/lists/* && \
     apt-get autoremove -y && \
     apt-get clean
 
 ENV ANDROID_SDK_FILENAME android-sdk_r24.4.1-linux.tgz
 ENV ANDROID_SDK_URL https://dl.google.com/android/${ANDROID_SDK_FILENAME}
-ENV ANDROID_API_LEVELS android-27
-ENV ANDROID_BUILD_TOOLS_VERSION 27.0.1
+ENV ANDROID_API_LEVELS android-28
+ENV ANDROID_BUILD_TOOLS_VERSION 27.0.3
 ENV ANDROID_HOME /usr/local/android-sdk-linux
 ENV PATH ${PATH}:${ANDROID_HOME}/tools:${ANDROID_HOME}/platform-tools
 RUN cd /usr/local/ && \